25 feet
exit through the shortest route.
That figure will vary from 25 to 100 feet. The figure depends on the operator or the airfield control.
turn off headlights and leave parking lights on
It breaks
The operator of a vehicle is responsible for the vehicle he/she is driving.
unhook battery
It means the vehicle needs to be serviced.
Aircraft
vehicle operator must request permission from the tower before proceeding beyond the INST hold line to prevent interference with navigational aids used by arriving aircraft.
Such a vehicle is said to be parked.
It means the vehicle needs to be serviced.
Unless it is a service vehicle that is in use for maintanence, you should never park directly in front of an aircraft.