First let me say, how the heck did she manage to screw up the tire this way?
She called road assistance to change it Then the road assistance girl (yeah, a girl, imagine that) broke a bolt and found out one of the nuts was wore out and won't tighten:
So they call the tow-truck. One hour later they arrive home. I looked at the thing and ask why she could not just use a nut from one of the other wheels? You CAN drive with only 3 out of 4, and it was only 4 miles. Bah!