The us postal service does not tell the truth. Delivery to them is showing up at the post office in the area of delivery. Apparently the post office has agreements with businesses where they have a slot at the post office where the business comes and picks up their mail if they can. If you want express delivery within a time period do not use the US post office. My very important package showed up in Chicago in time but their “attempt of delivery” was throwing it into a slot and hoping the company came for their daily pickup in time. Since they came early in the morning my package was not delivered in time.
Customer service department basically said this was my problem not theirs and after 5 phones calls to postal service customer service I gave up. Please do not use the us postal service, use ups or fedex. I have never been treated so badly and a grant was not delivered on time.