[Biscottinis]

I did it in some minutes, You could add a TogglePlayerControllable and more, this is just the base of the code you can use
@The Carjacking anticheat: I will develop it right now!
EDIT: The code were bugged,
the first if, isplayerinanyvehicle=0&&afarray=1
did not set afarray to 0, I fixed it.
Cya.

EDIT: http://forum.sa-mp.com/index.php?topic=177255.0 could work for you.