I picked up a staple in one of my tires. It has a slow leak. I took it to the local firestone store to gave it patched. Tire store dude looked at it and said that it was " illegal" to patch two holes in a tire within two inches of each other, ( since it is a staple, there are two prongs, each about the size of a small finish nail.) He was more than happy to offer a discount on a set of new firestone tires. Was this bullshart about the tire patch?