I fell for some local autoparts store locking lug nuts once and ran into this issue. Pounding on a socket and PB blaster did well, although I did also invest in a removal kit later on. May I also suggest that you get a dead blow if you decide to do any pounding on your tire. A little overzealous and it is quite easy to mark up your wheels.
WJ 4.7L*245/75R16*Mopar Front/Fuel Skids*KOR T/C Skids*JCR Sliders*Flowmaster 50*Airraid MIT*OME HD*Bilstein 5100s*JKS Trackbar*ARB Bumper*SB XRC 10*Zone links*Almost as much electronics as Batman..