Got a nail in a new tire with 600 miles on it. The dealer wants to sell a new tire and says repair is impossible. The nail is in the tread portion and straight in. No sidewall damage, I saw the nail before it lost pressure. Is this a crock or are they correct? It's the rear tire and I dont see why it cant be patched from the inside using a fiberglass reinforced, thermally applied patch. I seen them use these patches on 80PSI load range E tires. Any comments appreciated.