So I got 4 new tires put on my car a few months back and just took my car in for an oil change at a different garage. The guy there mentioned that I was missing a lug nut, and that they could put one on for me. He said that the lug nut itself was $2, but that it would cost $50 labor to put it on. He said that they would have to take the brake pad off or the caliper or some nonsense like that. I said no.
Anyway, I called up the garage that put the tires on and they said they would throw the lug nut for me at no cost.
I just want to make sure, this is just a simple matter of putting a lug nut on right? The stud is a bit rusty since its an old car, but seems to be completely fine otherwise. Was the guy at the other place just trying to make a quick buck off of me, or is there more to putting on a lug nut than I am aware of?