12pm on a Saturday?? That's kinda late, especially if it's a nice day. Just so you guys know, they'll stop letting cars in if it gets too crowded and hits capacity, and I've seen it happen much earlier than noon. I'd hate to see those of you driving from far get turned away. There's a sign on the median on 37 before the bridge that'll say if it's open or at capacity.
BTW...the $10 is per car, so it'll be cheaper for those that are carpooling
