You get to be on the field pre-game, however you have no direct access to any coaches or players. Basically, you get to see the warmups up close and have great proximity to the players. Hear what is said.
Hovever, even if you get a full game field pass autographs are not a part of the package. The rules of use are on the back of the pass when you get it, read them and follow them or they will revoke it and make you feel terrible. Seen it happen before... not pretty!