(EDIT)
Delivery #13 finished.
Coffee level: CRITICAL!

Mysterious Shopkeeper: Hey, over here...

Me: ???

Mysterious Shopkeeper: The townsfolk have seen that you have been delivering gifts and supplies all over Winterland, and they wanted to return the favor; we just brewed this up this evening, we call it, "Winterland Road Warrior".

Me: Uh, thanks? (tries mystery drink) IT'S COFFEE!!! Christmas miracals DO still happen! MERRY CHRISTMAS EVERYONE!

After I had finished the coffee, I looked up and noticed that the shop had vanished!
All there was in its place was an old sleigh, falling apart and covered in snow.
I got back in my truck and drove away, wondering... was that Santa?...