Tell us about the headgasket issue....
Since Emich changed thier Service Manager I have had no real issue with them. I am surprised they are not returning calls as they know it affects thier Stellar Performer ratings.
As you may already know they moved to the old Saturn dealership. It was a big deal and there were (are) some phone issues. Call back and ask for Dan or Scott. If they can help you they will. They are really good guys and they do look out for the customer. Be honest with them though They have very good BS detectors
Good luck!