Big Al's at the Chargers Game

A minimal amount of investigation has taught me that Big Al's on Shelter Island (SD, not LI) is not the Big Al's I saw at the Chargers Power Party (left picture).

What's interesting is that they, the Shelter Island people, did attend the game as fans, but not as caterers. That's Big Al's Seaside Deli
2724 Shelter Island Dr.
San Diego, CA 92106

So who the heck was at the game?
Personally I could have gone for a sandwich.
Here's the lunch menu