Steering Wheel Lock Plate

Agree with RedFish, you may need to attack the pin from the other direction. Really doesn't take too much force. You should be able to pop it out with a hammer and punch. Just to confirm... you have removed the little collar that hides the pin, yes?
Removed collar. pin is fully exposed. It appears to be rusted in place. Looks like its time to roll our a 3/16" bit with approximately an 8" shank.