If there going to steal it, they'll steal it.
With a little "McGyver" I can fire up a speedster in under 30 seconds.
Rear parking light hot wire to the positive side of the coil.
Turn on the parking lights, you now have 12v to the coil, pop the clutch and "as Simon say's" .....off you go!
I-we did this a few times in HS to the Principal's old rat Beetle parking it front and center on the school lawn when he would be at lunch.
On the final adventure prior to being banded for the rest of my Senior year from parking my ride in the HS lot, the PA system came on and crackled ..."PUT MY CAR BACK....NOW!"
Early evening just prior to our Graduation on the HS football field, we struck one last time parking it on the 50 yard line :)