Thanks for all the ideas. However, still nothing.

I just attempted a slide hammer with a steel bar across the two spokes spanning the nut. Hoping to pull the stud into the flange. No go. Didn't want to beat on it to hard afraid of damaging the wheel. Already started to curl the edge a little. Nothing a file and some polishing won't fix.

The issue with putting the weight of the car on it is that the nut is on so far that it is into the taper of the wheel. So it is not loading the stud, but rather the nut on the taper. Regardless, I tried this, and still no go. Effing thing.

Bout all I can see working is drilling it out. Have to figure out a way to make a good pilot into that key nut, and pray that I don't bust the bit off.

Either that or take a sledge to the car and call the scrap company. Sorry, bad day.