I remember the Olympics summer in '84. The predictions were for gridlock on all freeways from Ventura to Irvine and mass hysteria at all tourist attractions from Disneyland to Santa's Village. None of it happened. People were so scared of the crowds and the mayhem that they stayed home. The freeways were wide open, and Disneyland had one of its lightest attended summers in decades.
I do wonder if a similar thing will happen that first week or two after opening day. On opening day you'll have so many neckbeard bloggers and Star Wars fans wanting to be there that it will be nuts. But the following Saturday? It could be very slow. Stranger things have happened.