I think the best thing I have seen is a friend of mine in congress park rigged a few lights up to a motion sensor...something crazy in the many thousands of lumens...and he put a flasher and clock on it. So when anything came near his ally after midnight, it lit up like it was daytime and it was flashing. You'd have to have some crazy balls to keep breaking into a vehicle with these lights flashing on you!
Horribly Painted '95 FZJ80 Has Some - Still Needs More!
"I drive an ECO-FRIENDLY FZJ80...It's got a salvage title which makes it a RECYCLED vehicle. Therefore, don't mess with me when I park in the "Reserved for Green Vehicle" spots in Boulder!!!