How much control does Obama Motors have over your car... hmmmm.. tracking (knew that), ability to turn on your flashers (didn't know that) and ability to shut off your engine on command (didn't know that either). Damn if they declared an "emergency" they would effectively be able to "ground" all GM vehicles, even if you don't subscribe they can "activate" the service at "no charge' to prevent you using your car. Think about it, you wanna stop widespread panic with everyone trying to drive out of town, and one switch and you eliminate a very good percentage of the traffic. or prevent them from leaving....
I realize this was designed to help recover stolen vehicles, but if used wrong...... ouch