A bit costly but you can get an alarm with a stand alone GPS system, separate battery even, calls your phone, call the cops, let them know where it is going.....pretty much have to flatbed it but if they did get it run you can shut it off when the cops are ready....
I am hoping a video system will be available as well, calls your phone, turns on the audio, lets you talk to them about being there in a moment
Of course not much use against smash and grab, why we still have to have insurance for that.