I get this problem if I don't use my parking brake on a hill. Sometimes its real hard, so now my shutoff proccess consists of:
Pull into parking spot
put it in neutral
roll back an inch
pull parking brake
put it in park
This will save wear on your transmission by not parking the vehicle weight on it.
2001 Ironman Daily Driver... 3.5" suspension lift (OME912 springs and 1" spring spacer), ball joint flip, 1.5" front diff. drop, 33"x12.5 TrXus MT, 16x10 Eagle Alloy rims, Interceptor, PV muffler, K&N air filter, Alpine Supercharger, Bilstein shocks, and some trimming.
2000 Ironman Project LS-1 VX... very slow progress but someday....... ohhhhh someday......