Pete,
Possibly a REALLY dumb question about to come out of my computer... but you said you keep the shop around 45-55 degrees - with it so cold lately, do you know what the dew point is? could you possibly be in the transition point, where the saw is sensing moisture?
With that said, I would think that the SS guys would have encountered this MANY times already, so it is likely a dumb scenario, but I am just thinking out loud here.
Personally, I agree with Jeff;
"I would call them again and ask to speak with a supervisor in the Tech Service area; tell them the problem and how you expect them to fix it at your shop sooner rather than later. The fallback option would be sending you a replacement control module or new saw and the packaging to return ship the defective one. Be nice, with no threats of legal action, etc.; they're human too and civility is paramount for success.
Hopefully, this gets things resolved quickly.
While I would not expect them to send a service technician, across the country, I would think a company that is selling a premium product has a method of dealing with these kinds of issues in a potentially remote setting, and to add insult to injury, I don’t consider Denver NC a remote location being so close to two large cities in the south!