I have never had mail come this late. It finally came at 5:05. I was also expecting some packages. Which didn't arrive, but on the website it says it's in route.
I think they changed the pickup times and hours of operation. I know for a fact they close at 4:30. I assume they pickup mail b4 then. Please don't quote me on this. They do run mail/pickup tomorrow. The office closes at 12:00. Hope I was a help to you.
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