I bought a Travel and Track Decal from a post on this forum. You are supposed to be able to lift off the states on the decal as you have ridden in them. I got the decal on OK but now I can't remove the individual states as simply as the instructions state.

Has anyone else bought this and managed to get the states off without scratching the bike's paint? What's the secret? I've tried using my fingernail as the instructions direct. That didn't work. I've also tried an exacto knife and tweezers.