Comic-Con is posting parking information as a service to our attendees and the city of San Diego. Comic-Con has nothing to do with parking for the event. The sale, pricing, and allocation of parking spaces are all controlled by the individual companies that own the parking lots.
ACE Parking offered a lottery-system sale for their lots in April, which they announced independently on their website. They will open their system to the public again to sell any remaining parking spaces. For more information on the date and time of that sale, visit http://www.aceparking.com/