yes ... Use a shotgun
Almost any geek will have an eclipse or viper security. Yes it can be shut off remotely<br />
Yes you can start the car remotely and YES YOU CAN DISABLE THE CAR REMOTELY....
Go to your app world.and.down load it. Steal his keys, program your device/phone etc... unless you can see his module it wont be possible with out key fob (so...I am told )
Or just threat'n his life. That is an automatic win/win. 1000% of the time... lol.
Generate an EMP to fry the circuits, or use high explosives to destroy the target vehicle.
You can build an EMP generator from a disposable camera
that hardly could do serious "damage".
Sugar in the gas tank or a shotgun to the engine are the classic country style methods of addressing such ignorance. Unless you are completely careless there is no way to trace either back to you. Ballistics don't work on a shotgun.
clone his key and you have your own remote control for his car.