Waymo Calls Police on Two 15-Year-Olds Riding in San Mateo

A Waymo robotaxi called the cops on its own passengers this week, and the passengers were 15. According to 404 Media's writeup of a San Mateo Police Department post, two teenagers were riding in a Waymo when the company flagged the trip to police, who then stopped the car with guns drawn and pulled the pair out. The alleged offense as reported to officers was drinking and shooting from the vehicle. What the teens actually had, per the police account, was a painted SplatRBall toy gun firing Orbeez polymer beads and some Powerade bottles they were drinking from.

The San Mateo Police Department leaned into it on social media, posting "Parents do you know where your teens are? @waymo does!" and describing how officers "were able to safely remove both subjects and determined they were shooting Orbeez from the car as they sipped on afternoon libations while being chauffeured around town." The department still framed the behavior as dangerous, noting that "Shooting projectiles at speed can cause real damage. And lest not forget the underage drinking."

The part worth sitting with is the mechanism. Waymo's own support documentation, as 404 Media notes, says the company may "review video under certain circumstances" and can "access live video during a trip" in urgent situations. That has always been theoretical for most riders. This is a concrete example of the capability being used to summon armed officers to a moving car based on what Waymo saw or heard inside it.

The honest caveat is that the reporting does not tell you what specifically triggered the review, whether a human at Waymo made the call or an automated flag did, or how the company defines an urgent situation in policy versus in practice. Waymo did not respond to 404 Media's request for comment. What the story does establish is that the cabin of a driverless car is a monitored space that can, and now demonstrably will, produce a police response. For anyone building consumer AV policy, competing with Waymo, or just thinking about getting in one, that is the fact to carry forward.