The official program is very good with several color pages on some of the players. It is now sold separately from the scorecard and stats.
You can get the scoresheet which separately for $1.It is one of the nicest (full-color) insert stats pages in the league and includes "lucky numbers" for the drawings --so hey, you might win something too!
You can get hot dogs, foot-longs, and brats here (as usual). But these continue many other interesting choices to try (most from franchises) including:
Though not running the concession stand, there are still also the infamous pickled eggs from Jim Lauerman's #2 Saloon.
Unless you're staying in the dorms or they leave the porta-potty from construction you should drive up to 19th Ave. and find a gas station or restaurant.
Two sets of permanent restrooms are on the main concourse. They are large enough handle the crowds well. Women's room (according to my special source) have 12 stalls so there shouldn't be the terrible wait known at most parks.