Better headline: "Police officer stands near parked car".
Flagged. Seriously, how did this get upvoted? It is a picture of a police officer standing somewhat close to a google car. A tl;dr would be longer than the story because there is literally no text.
This isn't a story. Google's current self driving cars are normal cars with an especially intelligent cruise control. They are at all times legally driven by a person, (s)he just might not have their hand on the wheel. Without any additional information, this is just a normal driver being pulled over.
Yeah, someday maybe closer in the future than many think, the headline will be "driverless police car pulls over ..." - probably in a war zone.
Was anyone in it? How did the car know to pull over? How was it able to find a safe spot to pull over?