What color Loctite did they use? If it looks red, that is the wrong one and that might be your out with the dealer. I bought a special Ford antenna "wrench" and have never had any problems removing the antenna from either Escape. Also, your father should have tried using a screw extractor rather than drilling the old one out entirely. His method, while certainly well intentioned, was doomed from the start.

2006 FEH 4WD Dark Shadow Gray