I can't say I know what happens at a prison, but I'd assume there's some person(s) working as office admin at these places who sort out the incoming faxes. I'd be surprised if these don't just get trashed when received as they have no real bearing on the prison operations. I doubt Yelp reviews would sway elected reps either, unless there was proof a person they represent who can vote was upset. In other words, I imagine these faxes just waste some prison admin time in filtering them into the trash/recycle heap.