I think it would be fun to leave it as is. It would only be worth fixing if it was a high value coin.
Thanks everyone. You've convinced me to hold on to it. Showed it to my local coin dealer for a good laugh!
I sent in two 1999-S silver proof sets to be graded at NGC. Virtually every quarter and half dollar is mislabeled. Both halves say Connecticut, one Pennsylvania quarter is correct while the other says fifty cents. Both Georgia's say New Jersey. Both Connecticut's say Georgia. One New Jersey's says Pennsylvania, the other says fifty cents. Both Delaware's are correct. I sold one set to a forum member. I eventually cracked the quarters and placed them in a Dansko album. I still have the Kennedy with the mislabeled insert.