Oil Filter Frozen

if the car will start,let it run until it reaches normal temp.the filter should come right off..i had the same problem on a vehicle that had set for 19yrs,i got it running and let the motor get up to operating temp and was able to spin off the filter with ease..hope this helps..also,if you have put a hole in the filter,you may want to use a small propane torch to heat it a little..good luck..