I walked in, no one was inside working. I waited about 10 minutes before someone peeked their head around the corner while I was on the way out to get a meal elsewhere. I figured, screw it, I'm already here. I want Subway. The Sandwich Artist finally appeared. Might as well get a sub. The guy working there was creepy but generally friendly (and also seemed high as a kite), but he honored my coupon even though they didn't technically "accept" them.
I've had this happen in the past at this location where the Sandwich Artist has left the building (different guy though). I'm not sure where the manager is, but s/he doesn't seem to give a crap what goes down there.