Another thing to consider is that you didn't drive around long enough for the heater to be effective. It takes my GT a very long time to throw heat after engine warm up: ten minutes?
Howard
Rick at Sarasota Ford has done clutches. Totally reliable and talented, but will be pricey through the dealership. Also, they keep Rick very busy and you'll probably have to wait your turn. May be worth a call though.
The GT tech (Rick) at Sarasota Ford is terrific. He is meticulous and services many FGT's and NFTG's in the area. If that's who gets sent, you're getting the best. If not, drive to Sarasota after making an appointment to have Rick do the job.