Ken,
It is unfortunate that your freon line was punctured. However, let's look at this in reality.
When Lon Smith came to your home, why would they go in to your attic ? The problem you have is improper installation of an A/c line installed on the underside of your deck. This was faulty application by the company who installed your A/C unit freon lines. A nail went through the plywood deck and punctured the line. If the line had been placed in the correct position then no damage would have occurred. How can you blame a roofer for something they have no control over? This is a problem that plagues good roofers and your complaint is a little over the top.
I have been involved in the roofing industry for over 40 years and hate to see someone get blamed for something that is of no fault of their own. I have no association with Lon Smith but thought a rebuttal was in order.
Larry Kinsey
Roof Consulting & Thermal Imaging