The FBI has bought 12 Auto Tasers, Miller-Steinke says, noting: "We don't know what they'll use them for--everything is so top-secret there."
Although police agencies don't endorse specific products, retired LAPD Det. Gary Sims recently said he would welcome "any legal method you use to make it harder for someone to steal a car."
People have done everything from "wrapping a live snake around their steering wheel to leaving big dogs in their cars" to thwart thieves, says Sims, who investigated auto thefts in the city.
Ultimately, he warns, "if someone really wants your car, there is nothing on the market that can stop them."
"We've had suspects dismantle tracking devices on cars as they are driving down the freeway," he says. "I've watched suspects steal a Mercedes that had an alarm system in less than a minute."