OCing in Springfield is pretty good. Coppers are getting more aware though it can still be a PITA.
If I was you I would go to Academy or Bass Pro and by your pistol make a copy of the reciept and give it to the aholes at the gun shop. There is a lot of them around here that are rude and dont give a crap about there customers here in SW MO. A little friendliness goes a long way.