try using WD40, sounds crazy but it works . Spray a little on there and let it sit for a minute or two. I havent seen it harm paint yet. If that does not work, virgin lacquer thinner will. You have to be extremely careful with the lacquer thinner. It will cut through the adhesive almost immediately.
Using these methods, you need to be extremely gentile. Use only an very soft terrycloth. Do not push hard at all. When using lacquer, it will easily scratch the paint and leave a dull spot if that happens, compound by hand and wax.
I work in a detail shop and we have used these methods. If you choose to use them, Like I said, BE CAREFUL and GENTILE
Oh, I forgot, ammonia base window cleaner(windex) can work to cut adhesives too.