I'd love to see one of those photography conventions. It looks like they had some interesting subjects for you to take photos of, anyway. I took portraits for a couple years and almost never take them now.
Inconsiderate people seem to be everywhere, unfortunately. I had a lady pull up and stop right between me and the bison the other day. Just parked her huge van right in front of me. Ugh. Fortunately, the inconsiderate ones are the exception.
Ohh yeah it is a cool experience to visit, apart from two weddings for family I seldom ever shoot people its just not my thing, but it was fun to try