acorn lugnut qustion ???

[riz]

Tonight I went to take aw wheel off my Jeep GC and the thin metal cover over the lugnut came off in the socket. There is still a lugnut on there and I tried to get it off but it won't budge??? I even tried to over tighten the others to see if it would come off but no luck ?!?!?! I'm stumped as how to get the darn thing off. Any ideas and help will be greatly appreciated. I can't even drive it to a tire shop since I have the front all tore apart on the other side and it's all jacked up on jack stands.

Thanks in advance.

RIZ