On the east side of the Hudson River, there's a new store where the trail crosses route 9, at the intersection with route 403. It's really a gas station with the usual convenience store, called Appalachian Market. I wandered through the store and there's all the usual junk food you'd expect plus a number of things a hiker could eat, such as mac and cheese, ramen noodles, jerky, and cup of soup. There's also some canned food. Considering the fact that Greymoore is just a few minutes walk north, canned food wouldn't be too bad if you plan to spend the night at Greymoore as you can throw away the cans there. I suggested to the manager that they stock Heet in the yellow bottles in their small automotive section. He said he'd look into it.
The store's nothing great but at least it's another option