Im sorry to hear you got a nail in your tire. If you like we would be happy to fix it for free if you havent already done so.
Im not sure where the nail could've come from as there hasn't been any recent construction on the premesis. We try to sweep the parking lot on a regular basis for nails, screws and other pieces of metal but its hard to keep up. We service alot of construction company trucks, contractors & service trucks so its always possible something couldve fell from them.
Should any issue like this arise again please dont hesitate to come back here for us to make it right. Please let me know if there is anything we can do for you. We appreciate your business.