Could be he was just making conversation. I don't think it's anything more than that.
I own 2 Ram diesel pick ups, a GMC Sierra, a Chevy Silverado, and a Ford Chateau Club Wagon. I do much of the work on them myself, because I enjoy it and find it relaxing. Never in a hurry, and try never to get too upset about things that happen to go wrong.
The closest parts store to me is an Advanced Auto store. I've gotten to know the crew there fairly well, and they never know which brand I'm there for. lol