In a scene straight out of science fiction, San Bruno police officers recently found themselves staring at an empty driver’s seat after pulling over a fully autonomous Waymo vehicle. The bizarre stop, sparked by an illegal U-turn, has since gone viral, igniting debates about accountability in the age of driverless cars.
The Traffic Stop That Went Nowhere
In the early hours of Saturday morning, San Bruno police were manning a DUI checkpoint when a Waymo robotaxi swung a U-turn directly in front of them. Officers moved in for what should have been a routine stop, only to discover there was no driver, no passengers, and no one to cite.
Photos posted by the department showed an officer peering into the empty cabin, captioned with the now-famous line: “No driver, no hands, no clue.” Within hours, the post had racked up hundreds of comments—some amused, others frustrated that a company-run car could seemingly break traffic laws without consequence.
Why Police Couldn’t Write a Ticket
San Bruno Police Sergeant Scott Smithmatungol explained the awkward reality: under current California law, moving violations require a human driver to be identified. “Our citation books don’t have a box for ‘robot,’” he joked.
Parking tickets can be assigned to a vehicle regardless of who owns it, but traffic infractions are different—they hinge on a driver being responsible. With no one behind the wheel, officers had no legal avenue to issue a citation.
New Law on the Horizon
That loophole won’t last forever. Starting next year, a new California law will allow law enforcement to report moving violations committed by autonomous vehicles directly to the Department of Motor Vehicles.
The DMV is still developing the system—how penalties will be logged, who will pay, and how repeat offenses will be tracked. But lawmakers say the goal is clear: autonomous cars must be held accountable the same way human drivers are.
“Driverless technology can’t mean lawless technology,” one legislator said earlier this year while pushing the bill forward.
Waymo’s Response
Waymo, the Alphabet-owned company behind the robotaxi, acknowledged the incident in a statement. Spokesperson Julia Ilina said the firm is reviewing the situation and remains committed to road safety.
“Our autonomous driving system is continuously monitored by internal teams and regulators,” she said. “We take every event like this seriously and use it to improve.”
Waymo currently operates fleets in Phoenix, San Francisco, Los Angeles, and nearby suburbs like San Bruno, where adoption of self-driving taxis is still expanding.
A Sign of the Times
For now, Saturday’s U-turn is being seen as a growing pain of the technology. Advocates say incidents like this will become rarer as programming improves. Critics argue it shows how unprepared the legal system, and the cars, still are for everyday road realities.
“This blew up a lot bigger than we thought,” Sgt. Smithmatungol admitted, reflecting on the viral attention. “We’re not a large agency, but clearly this hit a nerve.”
Whether comedy or cautionary tale, the stop underscored one truth: California’s roads are entering uncharted territory. And as autonomous cars multiply, the rules of the road are literally being rewritten.
