The State Patrol says troopers in the Seattle area were recently pulling over high occupancy lane violators - people driving alone in a lane intended for vehicles with two or more occupants.
That's when the odd "passenger" drew one trooper's notice.
The patrol says the trooper stopped the car and found the driver had placed a stuffed Diego doll from the Nickelodeon children's show "Go, Diego, Go!" in the front passenger seat.
The unidentified driver said he was late for work, so he drove off with his daughter's doll so he could use the HOV lane.
He was cited for the violation.