katysails wrote:
Did you try acetone?

Xylol is usually a better solvent for partially-cured epoxy, although
vinegar works very well up to the "green cure" stage.

tried everything up & including wetsanding & repainting, which I had
to pay somebody else to do the final steps. PITA and a delay I did not
need for other ongoing jobs. However your neighbors goodwill is worth
soemthing and he won't park his car there again

DSK