I found this to be the worst supercharger location on my Trip to Yellowstone. They were all ICE'd. The locals have no regret, say its so close the entrance to the store.Very Bad.
Sorry your experience was so bad -- Tesla picked a horrible location even tho they were warned by several of us who live here. Hopefully you were able to make use of one of the J-1772 chargers around town. They're slow, I know, but better than nothing.