Hi
@pandaknows ! My 2 cents:
There is a Subway (it's now called Soups 'n Salads) in a plaza on Rt. 123 in Norwalk (New Canaan Avenue, off the Super 7/95) I think Dulos would have taken the Merritt, though, so that would only be an option if he had gotten to NC quicker than expected, and wanted to "kill time" getting a snack, but didn't want to be seen in NC
On Main Avenue in Norwalk, in addition to in Wal-Mart, there is (or at least was, to my last recollection) a standalone Subway, I believe in the same plaza as Dress Barn and Town Fair Tire. They're really next door to each other and easily accessible from 95 and the Merritt.
My No.1 choice would be the Fairfield rest stop off the Merritt. Always busy.
Also, Subway now has breakfast sandwiches, though I'm not sure if they are offered in locations that also have DD.