that is it against Arizona state law to desecrate the US and Arizona flag in any way.
For those of you that did not already know, it is a Class 4 felony in the State of Illinois to desecrate the American flag.
As much as would love to agree with you, I don't ever think it would hold up in court. I'm not going to look it up, but i think the US Supreme court has already rule on this one.
I think it's better to take the valve stems off their tires, and tape them to the windshield, any time you get the chance.