Mike, I'm pretty sure your problem this time with your missing motor mounts isn't UPS but the guy that placed the label on your package. UPS will LOSE your package, but they deleivered one with the tracking number you were given to the guy in MD because that's what address it had on it. Someone at the motor mount place gave you the wrong tracking number or something. Get ahold of them and get them to send you another set.
I don't like it when things take longer to ship, at least now you know is getting there.