Just buy a sign and prepare it before you go so all you have to do is swap signs.
Or steal the sign, modify it, and put it back. That way no money goes to them. We’re already committing vandalism, what’s a little petty theft?
True, but since you’re taking the old sign you can prep that one and swap it with another sign. Why not hit as many as you can?
Good call. Now steal one of their trucks to haul them and we’re getting into real crime!