Janitorial supply house. Ask for chewing gum remover. Its a freezing agent in a handy little can.(doubtful)
As far as chemicals go...I have used as harsh as cumbustion chamber cleaner with no adverse effects.(doubtful)
The other thing would be a scapal or dentists tool. Try and lift it off. (doubtful)
And lastly,a dremel,an ultra fine bit,a nice bright light,and a magnifing glass. Time to play brain surgeon. Finish off with a wet sand and cut polish.Thats the route I might take. It will take time and patience. But if you only grind as far as the clear coat,the rest is easy.
Good luck.
RSD.