Unlock/Lock Scars

Hey,

When i spawn a scar from the F4 menu in DarkRP it fully works, but i can’t unlock/lock it with the keys.
Does anyone know a way how to fix this? Is there another way to lock/unlock the cars?
I’d be stupid if a player can just steal another players car.

http://forum.facepunch.com/showthread.php?t=1269982