Wow, that's a hard one to solve. I did auto painting for most of my life. If it were me, I would try to water sand the clear off the sticker with at least 1500 wet and dry paper. Use a few drops of dish soap in the water and always use lots of water, it is what keeps the sand paper from clogging up with bits of paint. It's those bits that will scratch the paint! With the clear off, the sticker itself will come off if you soak it with peanut butter by leaving it on overnight. The oil softens thing up. You would then water sand the whole thing and re-clear-coat it, even if you just use a spray bomb.