USNews, via Dvorak [1]:
When Jonathan Frieman of San Rafael, Calif., was pulled over for driving alone in the carpool lane, he argued to the officer that, actually, he did have a passenger. He waved his corporation papers at the officer, … saying that corporations are people under California law.[…]
A carpool lane is two or more persons per vehicle, he said. The definition of person in California’s Vehicle Code is “natural person or corporation.”