Sorry you encountered an extremely rude and pushy person. They do exist in TV, but in fewer numbers than in other areas for the most part. Guess people sort of feel that this is more like a resort than a home town for a while and as swrinfla said, " some hang on to the prejudices and "me, too" outlooks of their previous life!"
After a while, they might soften to the gentle smiles and more friendly attitudes of the majority. Let's hope so! Some people are more self centered than others and their world is rather limited....it's them and no one else. Sometimes it's because they haven't yet adjusted to retirement, other times it could be because of age related changes that impact thinking, sometimes it's just because they're nasty individuals. It's probably just better to smile, explain that spots are not assigned and it's a first come, first to get a spot situation. (Not sure they'd appreciate it if someone talked to their wife or mother in the manner you were spoken to...and plenty of residents have older relatives in TV. ) They might not like moving, but that's just something they're going to have to adjust to.
(Guess you can't drive your big rig over their motorcycles like they do in the movies....
)