I have my car back now and it seems fine. Salesman sez this is not uncommon. He was told by a H____ U.S.A. rep was that probably when the previous owner had their oil changed last time the "changer" stuck the bolt in the drain so he/she would't get wet. So I would advise everyone who doesn't do their own oil changes to check with their service provider to see if they do this to the cars they service during the summer.

 

Thanks falkore24!