Do you worry about your car when you take it out?

You can also remove the coil wire easily, or better yet pop the distributor cap, and remove the rotor, then snap the cap back on. Keep the rotor in your pocket. It aint going anywhere. A good hidden kill switch or 2 cleverly hidden in the car helps too.

I used to have one under the 4 speed shifter boot on my old charger. You just felt around on the rubber of the boot to trip the toggle. Have to position it so driving the car wont trip it off. The bonus is wrapping the wires with your reverse lamp harness for stealth.