My store had approximately 200 people in line (why do people bring friends/family to events like this?). Sold 133 units. 32 strategy guides. 2-to-1 sales for Xbox 360 in comparison to PlayStation 3. Somebody mentioned 630p. Full police presence (four cruisers total).
Some crazies really came out tonight. Guy spat on another guy for getting the Xbox 360 version. One dude threw a fit when we started to hand out games to folks who already pre-purchased the game and he had to wait (we got everyone who already went through the register their game in less than fifteen minutes!).
Rockstar also sent out a rep to give folks in lines t-shirts, posters, stickers and free swag. Took a bunch of pictures, since I gather we were a pretty big event.
A little bit bigger than Halo 3. Doesn't feel as "hyped" as that release, though.
EDIT: Also, I served every single walk-up customer that came. Either copy. Didn't matter. They got it. Except Special Editions, which I offered to sell off after 48 hours. Take that, losers!