I believe as long as your battery is not dead, you can put the car into neutral by turning on the electrical accessory mode and then the following:
1: Push the lever twice in to N
2: Push the lever to N and hold for 5 seconds
3: Transmission is now disengaged for 15 minutes after which it will re-lock itself.
I have not try this myself.
Last edited by The X Men; 04-30-2013 at 02:19 PM.