You go and sit, then you sit and sit some more. By the time the game starts everyone around you knows you and it's not a big deal to go put your seat in your car and come back while everyone holds your spot for you. It's actually a pretty relaxed atmosphere. There's bathrooms too, so you don't have to hold it forever. 11-1130 might be cutting it. You'll probably be fine. I would come earlier for the Fielder bobble though.