Firehouse Subs - BOGO Medium Subs when Toronto Maple Leafs win

Firehouse Subs is running a promo this hockey season where when the Toronto Maple Leafs win, you can score a BOGO medium subs offer. The code (when offer is active) is LEAFSWIN. Don't see much about it online (season opener is on Tuesday), but showed up as a popup in the app (wish I had taken a screenshot)