premise: They finally got the part installed and I hit the road at 4PM , with about a 6-hour drive ahead of me . Susan and the girls had arrived hours before and were shopping for house stuff . About four hours into my drive Susan called to say that the van had a flat , and AAA was flummoxed because we changed our membership to the Texas " club " but Susan 's mobile phone still had an Atlanta area code . Why were they so confused about the area code change ?
hypothesis: They were n't sure if it was the real people calling .