Sorry to say, it isn't going to happen. The way the entry way to the stadium lockers is set up, the seats are a good 5-6 feet higher than the field. Maybe more. You won't get any is my bet. I have sat around after games to allow some of the rush to leave and have never seen players lingering around to sign anything. Baseball is about the only game where you still stand a chance to grab a autograph or two on a game day and not at some set up function where a player or two make a personal appearance. And if you do stand a chance, it would be more likely before the game, but you still have the same problem with the field being well below the seating area.