Just a heads up for those con-goers who plan on leaving Monday...
The parking garage above Psycho Donuts leaves their gates open until 11PM on Monday because of Memorial Day. I parked my car there Thursday afternoon and left Monday morning without having to pay anything. I stayed at the Fairmont and only had to walk 2 blocks to get to the hotel. If you're staying at the Marriott, it's about the same amount of walking. Just pull up to the hotel, have a friend watch your stuff, park and return to check in.
I know that someone posted this same tip before, but I thought I'd give it a shot myself before proving or disproving their post.
So in a nutshell, free parking in the garage above Psycho Donuts!