“As the officer approached the slow moving car he realized it was a Google Autonomous Vehicle,” a police department post said.
Which is to say that no one was driving the darn thing. There was, however, a passenger. So the officer asked the passenger how the car was choosing speeds along certain roadways.
link para reportagem: http://edition.cnn.com/2015/11/13/us/google-self-driving-car-pulled-over/