Tru,
When I did take my car to any shows I quit using the Do Not Touch sigh they gave me because it is like a wet paint sign. Everyone has to touch it to see if it is there. After I quit using the sign I never had any problems. Although a friend of mine did come back to his car one day and found two teen agers in it shifting the gears and playing as if they were really going. And they did go when he got there.
Ron