it seems that people in general are numb to a car alarm goin off, i personally would lean towards something that does the call/page thing and disables the vehicle... no sirens or honking horns etc... that way the would be theif is sitting there trying to figure out why it wont start when you show up with your "tool" of choice to "educate" them about stealing your car..... i mean "after" you called the cops of course
