Adhesive Removal Help

This isn't for my 2 Volvos, but may apply.

I've got a car where I removed a chrome strip from the hood.  There was much adhesive which I managed to get off with plastic scraper and goo gone.

But there is a thin black bead (like rubber) that will not come off, and I cannot dissolve it with goo gone or bug/tar removal, and cannot buff it out.  I've read that it may be the same stuff used for windshield adhesive. 

Before I go and sand it off and repaint the entire hood, is there some chemical that will break this stuff down?!?!?

Thanks!