Another thing with manual tranny pf's is that the clutch pedal has to be depressed in order for it to turn over. Now if this is somehow bypassed too then if you decide to park the vehicle in gear for safety, leave it in 3rd or 4th gear. If you happen to forget you left it in gear and try to crank it with the remote start there is less chance of the vehicle starting because of the high gear it is in. That coupled with the handbrake should keep it from taking off.