That's a good tip. The other day, I signed on to the City Center site at 11:10 just to check that my login was working. It was. I kept that browser window open, just by chance. I then got busy at work, and at 12 noon wasn't able to check the site. I was surprised that I had been put on the queue and assigned a number (800 something).
I hadn't realized you could get on the queue early. At least, I'm assuming that's what happened. Best of luck to all!