unless you're just jonesing for a (lousy, expensive) hot dog. My favorite is Irma's (Mexican) about a block west of the park, or if you have time and the legs to walk about four blocks, go over to Main and Preston (where the light rail line runs) and take your pick from St. Pete's Dancing Marlin (seafood) or El Rey (Cuban-Mex) or Cava Bistro (upscale surroundings but not prices, excellent continental cuisine) or walk a block south to Mia Bella Trattoria (Italian and very good).
Have a couple of beers at The Bus, directly across Texas Avenue from the park (costs half as much as inside).
If money is no object then try to upgrade to the club level -- about $45 a seat -- and go to the Carving Station, where they'll slice you some hot brisket or turkey breast or something similar. That's a twelve-dollar sandwich and worth every penny, especially for the potato salad.
Be sure and take a stroll around the stadium, and especially stand out on the left-center field concourse near or behind the Crawford Boxes.
They're giving away
a t-shirt that day, but it's only to the first 10K, which means you'll have to get there pretty early -- like say, 11-ish -- to get one. (You can do that and still leave the park and go eat and go back in, of course.)