Anyone take their boosted Z it a Nissan dealer?

[JWillis72]

Monday I had my CSF triple pass radiator installed but unfortunately my AC compressor isn't coming on now. It spent yesterday at the shop and they can not figure out why. It spent today at one of the best AC shops in town and I guess Nissan has it locked down to where only their computers can tell whats wrong. So I take it to Nissan and the service department watched me pull in, as soon as I get to the counter a salesman asked " what did you do to that poor car?" I answered with " made it fast like Nissan should have done from the start!" and he walked away. The service lady starts asking about the mods before I told her what the problem was and was acting freaked out about it. After we talk a bit she says "I don't know if we can work on that, lets go talk to one of my GTR techs" and we walked to the garage. He asked to see the car and after looking at it he said " I can work on it but it might be a little extra labor" and I said fine. Anyone else had an experience like that? It just seem odd since a lot of dealer sell the Stillen kits.