I guess, I have two questions:

1. Before I'll run SFO-BOS-SFO, I'd like to know, if it's possible to stay the night at (after security) AA terminal in BOS?
2. To the fellows, who knows Boston: are there any food stores cross subway station Airport (google map says, there are some apartment houses there). I can get to the Airport station for free from terminal, and in the morning I'm not sure if I'll have time to go somewhere else using blue line Subway.