It's a drive-thru Repent-n-b-Saved. A heavy set, black, Louisiana man stands at the far side, the customer wheels up in their wheelchair, they testify to the Lord, repent their sins and after a few minutes of shaking and of being entered by Jesus, they get up and walk down the other side.
There are random stuff like this everywhere. Such as http://goo.gl/maps/oCPP5 in Manchester. Random road that leads to nowhere
Oh you silly Muggles. Of course you cant see whats really there!