While the staff is friendly and accommodating; during my past two Tire rotations with two different vehicles, I had to make several trips as a result of stuck lug studs/nuts.
The latest one was a stuck/rounded lug nut that was last worked by your garage when I bought the tires (this was my first rotation) earlier this year.
It would be beneficial if:
1) your garage insures threads are properly cleaned to minimize this. (Obviously I can not know that this was the cause, but your garage is known for sending folks away with stuck lug nuts to have their mechanics loosen/replace them - In my opinion, more then coincidental)
2) Your garage should have the ability to remove and replace stuck lug nuts/studs. I like the fact that you do not do front end work, but having mechanics qualified to complete the removal and reinstall of a tire
would minimize a customers time and inconvenience for making an additional two trips to get this done.