Answer Question
The USPS status "Arrived at unit" will typically mean that your package has arrived at your local post office location. It does not mean the package has been delivered. It is still In Transit... Depending on when it Arrived at Unit, it will probably be delivered to your door by your local postman/woman that same day or the following day.
Difference between Depart USPS Sort Facility vs. Out for Delivery?
Can you pick up package from USPS post office before it is sent out on the postal truck for delivery?
What does usps pre shipment status means?
How often does USPS update its mail tracking?
How small of a package will USPS take?
Will USPS Priority mail typically take 2-3 days or can it take longer?
Who has the best overnite shipping USPS, FedEx, or UPS?
Will the USPS transfer packages to UPS for delivery?
Does USPS deliver packages on Sunday if shipped Priority Mail?
Is it illegal to put your destination as the return address on a USPS letter?