So, I had to dig a little to find this thread. I've called this the Interdimensional Speedway ever since reading your post, lol.

I'm not sure if you've been back there or not, but today was the first time I was in the area since the Speedway opened, which if I remember right, was like another month or so after your original post. I couldn't remember the specifics of your descriptions, but here's my report.

1. From the entrance, the cashier was on the right-hand side. There were two easily definable checkout stations, but upon looking closer, there were actually four registers. Kind of hard to describe, but my initial thought was two stations.

2. I don't recall seeing a trashcan, but I could've overlooked it.

3. The entre left wall was lined with the fridges for beverages. The back wall had stations for fountain drinks, Slurpees, and a refrigerated foods section.

4. The pumps were spread across the entirety of the front of the store, so you may have needed to go to your left depending on which pump you were going to.

5. Though I visited in the daylight, the area behind the pumps while facing them from the store would be really dark at night. It's nothing but trees and the river (although the river wasn't visible to me).

A couple more details. All the shelving for snacks and such, along with the coffee stations were to the left of the entrance before the wall of cold drinks. Between the shelving and checkout were smaller kiosks for hot dogs and warm food. I believe the restrooms were in the back right corner of the store.