How do you issue a ticket for a traffic violation if a car has no driver? Apparently, you can't — at least not yet.

A Waymo autonomous vehicle was recently pulled over by police in San Bruno, California, for making an illegal U-turn.

The vehicle demonstrated its programmed response to law enforcement by pulling over and connecting officers to a Waymo employee through its built-in communication system.

However, police found themselves unable to issue a citation since no human driver was present in the vehicle.

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San Bruno Police shared the incident on social media, expressing hope that the traffic stop would lead to reprogramming of the autonomous vehicles to prevent similar violations.

The incident

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