Auto repair service near Newland, NC

All I wanted was hime to use compressed air to blow out my a/c, he said he would not. He gave me a bunch of bull about how he needed to take the unit out and use a cemical cleaner to clean it out. We live on a mountain and I am building a home so we have alot of dust, all I wanted was to blow out the fins. It was maintenance. He must be very welthy and not need to work.