In park - Idioms by The Free Dictionary
[of an automobile transmission] having the gears locked so the automobile cannot move. The driver stopped the car and placed it in park. You have to be in park in order to start this car.
References in periodicals archive
Independents successful at the first attempt included Mick Saunders in Park
End and Michael Hudson who by six votes took a seat from Labour in Coulby Newham.