A man was hit by his own car in the parking lot of the Oxford Liquor Shoppe yesterday afternoon when the vehicle was left in gear. State Police say 73-year old Stephen Kovzel of Oxford didn't put his Jeep in park and it rolled backwards into another vehicle.  The other driver, 62-year old Mark Reilly of Beacon Falls, moved backwards into the car causing Kovzel to be caught by the door and run over by his own vehicle.  The car came to a stop in the northbound lane of Route 67, against a steel guard rail.  Kovzel was taken to the hospital for treatment of serious injuries to his arms and left leg.    Reilly was issued a ticket for evading responsibility, not having insurance, driving without a license and for an expired registration.