Here in Northern California, the best anti-theft feature I could have on my vehicle are small signs on all sides reading "ATTENTION LAW ENFORCEMENT: IF YOU OBSERVE ANYONE OTHER THAN A WHITE MALE OPERATING THIS VEHICLE, PLEASE MAKE A FELONY-STOP ON IT" but I expect politically-correct people would vandalize the vehicle to punish me for perceived 'intolerance.'
Reminds me of the sign a friend had on his car... "Attention car thieves. Please carry ID when attempting to steal this car so your next of kin can be notified."