Do you accept canned goods or boxed goods that are past "best to use date"?

They should. "Best to use by" dates are NOT expiration dates. Canning was invented so food would last years & years, not just months. Tossing foods because they are past the "best by" dates are a horrible waste of good food.

Please calling them and asking. I think they may. In United States expirations date have been setting by companies that making usually they can be used even after that date.