A fire engine turns into a narrow street and stops, because something is already sitting in the lane.
On any ordinary day this is a thirty second problem. You lean on the horn, somebody looks up, the car moves. This one has nobody in it.
It has seen the engine, decided that holding still is the safest available action, and it is doing that with total commitment.
Getting it to stop requires a telephone call.
Why an empty car is a different kind of obstacle
Everything about clearing a street in an emergency assumes a person is inside the thing that is in the way. The horn, the shout, the knock on the glass, the hand signal through a windshield. All of it is addressed to a human being who can be told what to do.
Driverless cars are not refusing. They are complying, with a rule written for a different situation.
The system is tuned above all else to avoid doing anything unsafe, and when a scene stops matching anything it recognises, the safest move in its whole repertoire is to stop and wait.
So it stops, frequently in the worst possible spot, because the worst possible spot is exactly where the confusion happened. And then it holds that position with a patience no human driver has ever managed.
What you have to do to move one
There is a procedure, and on paper it is sensible. Every vehicle carries a button in the console for reaching the operator, and the company runs a control room around the clock with a number crews are meant to call.
The dispatcher on the other end can put the car into manual mode, which unlocks the controls so a firefighter can climb in and simply drive it out of the way.
Read that again. To move a car ten feet, somebody in turnout gear has to phone a stranger and ask permission to touch the steering wheel.
Every step in that chain is defensible and every step costs time. One crew logged more than eight minutes waiting for manual mode to come through. Eight minutes is not a delay at a structure fire, it is a different outcome.
The count the department has been keeping
Between April of 2025 and July of this year, San Francisco firefighters filed 31 internal reports of robotaxis obstructing their work.
The list is specific rather than vague.
Cars parked across the firehouse doors. Vehicles stalled in front of a responding ambulance. Machines sitting where the ladder needed to go, which on a building fire is not a convenience but the whole method of attack.
At least four of those involved a call classified as immediately life threatening, and delays running past five minutes turn up repeatedly in the paperwork.
Separately, dispatchers have been called roughly a hundred times to wake passengers who would not wake up in the back of one, which is its own strange line item.
The fire chief told a city budget hearing that it creates a delay in response and a danger to residents, which is about as plainly as a chief says anything.
The month Washington ran out of patience
On the fourth of July a batch of robotaxis ran their batteries down and stopped where they stood, gridlocking central streets for hours and putting the issue in front of the mayor.
Days later the federal highway safety administrator wrote to the driverless companies describing a clear pattern of these vehicles interfering with law enforcement and other first responders, and asked for answers by the end of the month.
The month ended without one. A congressman called the number of incidents unacceptable, the operators said they had long supported a federal standard for exactly this, and a city supervisor began drafting local rules to fine the companies for blocking a street.
None of which is new to anyone who has watched one of these freeze mid street while a dozen more queue politely behind it.
What the fix actually looks like
The honest framing matters here, because the easy version of this story is wrong. These vehicles are not bad at driving. On the ordinary business of staying in a lane and not hitting things they perform better than we do.
What they are bad at is the rare street, and an emergency scene is the rarest street there is.
So the repair is not better driving. It is a handover that works in seconds rather than minutes, a physical control a crew can reach without a phone, and training so that a firefighter meeting one at two in the morning already knows the drill.
It is also transparency, which has been thin. Crash narratives filed with the federal regulator have arrived fully redacted, and a pattern nobody can read is a pattern nobody can fix.
The cars will keep stopping when they are confused. The question is who gets to overrule them, and how fast.
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