How much did you pay for that overspray?
Maybe someone else will have useful information from a successful first-hand experience from removing overspray. Was it an epoxy primer?
If I were in your situation, and no one posted a helpful suggestion, I'd try the "nuclear option" and try to lightly/gently rub off the overspray with lacquer thinner, using a cotton cloth, and wearing heavy rubber gloves and a ventilator-mask. Please, someone/anyone, correct my suggestion.
Good luck, and, tell us what you end up doing.
Tim
