This Post Office location is so small. They are only open between 10am-4pm on weekdays, closed all day Sat. There is no drop box for after hour mailing, and no Priority boxes available either.
To top it off, they close for lunch between 1-2pm everyday. So they are only open for 5 hours each day. Is there only one person who works here? That's the only reason why I can think they would have to close for lunch. And even then, 30 mins would do it.
If you have a PO Box here, the lobby isn't open 24 hrs. They close it at 10pm. So that means someone comes back to lock up. They come back at 10pm but they can't open any earlier to 10am?