I finished taking pictures of everywhere I lived in greater Madison. Getting the last picture was much easier than I expected; just asking the coffee shop in front of it if I could get a look out the back door was perfectly acceptable. I did explain that I'd once lived there, and was trying to get pictures of everywhere I'd lived in school; she was mainly interested in what it was like to live there. I hedged and said it was an okay sublet.
It was refreshing to see that even a moderately odd request was taken quite well when asked politely.
So now I've collected the whole set. And with half the trip still remaining. It is unlikely I'll post them anywhere, as they are of little interest to people who aren't me.