I went to the BOS office on 9/25. There were 4 people waiting outside the office (they all had appointments). The office staff of 2 were very busy, did not want to entertain any questions, and would not take me as a walk in. The guy was pretty rude, and seemed like he gets hassled by a lot of traffic who attempts to do a walk in.
Another gal was there who was late for her appointment (by 2 hours), and he basically told her tough luck, and would not instruct her on what to do next. She was very distraught as she had made the appointment so far in advance and pretty much messed up by coming late.