First of all, if you are the type of person that takes your car to a shop to rotate the tires, you probably will not be able to fix the current problem. No offense meant, just being realistic. So, find a place you can trust, get some word of mouth recommendations. Get the Jeep towed there and let them fix it. Then have them write a note for you to use in court, explaining the problem. Then write notes of your conversations with the previous shop, take pictures, etc and sue this guy in small claims court. You will win, he was at fault, and he should feel lucky he is not facing a claim for causing an accident or death. Whoever said this was your fault for not checking the lugs sooner is an idiot. Is it a good idea to check them, Yes, but can shops expect their customers to check no way.