A police officer pulled over a Google self-driving car yesterday because it was going only 24 miles per hour in a 35 mph zone. But the car had no driver, so he could not issue a ticket. The officer asked the human passenger why the car decided to drive so slowly.

From CNN:

In a Google Plus post, the Google Self-Driving Car Project pled guilty to slow driving.

"We've capped the speed of our prototype vehicles at 25 mph for safety reasons," the post said. "We want them to feel friendly and approachable, rather than zooming scarily through neighborhood streets."

In the end, the officer determined the car had broken no law. No harm, no foul.

And no ticket was issued — not because there was no driver to whom to issue it but because the car had committed no violation.