Nothing on the roof top makes sense. When Barney and Gomer are looking over the side of the courthouse building, how can there be an alley where there is no room? The court-house and Floyd's are adjacent to each other, abutted, so where's the alley. What the camera was looking at was the space between Foley's and the hotel. I believe it was George Kennedy and the guy from honeymooners (George Petri?) that they were spying on.