QUINCY, Mass. (AP) -- A commuter heading into Boston had a real dummy along for the ride.

State Trooper John Carnell was working a paid detail in Quincy on Thursday morning when he saw a vehicle enter the carpool lane on Interstate 93 north with a suspicious-looking passenger.

Carnell pulled over the vehicle and found that indeed, the driver had propped up a jacket with a mannequin head on top in the passenger seat. The fake head even had a little mustache drawn on.

Vehicles using the lane must have at least two occupants.

The driver, whose name was not made public, has been issued a citation for operating on an excluded way.