epoxy glass is pretty bullet proof.
+1 - - and strong - - have you tried a "putty knife" and just scrape it off? Even if you graduate up to MEK or Acetone, it will be a small area, not a long term exposure and even if weaker, the glass carries the majority of the loads.
I tried the "putty knife" and the stuff is stuck on real good. Is the paint thinner/mineral spirit the least invasive of the stuff available?
FWIW: I went ahead and used the citrus based Goof Off and it worked GREAT!