Night City Postal Service

Although the main means of communication in the 21st century are electronic (dataterms, faxmail), or by courier services (United Express, etc.) there are still limited holdouts who feel a letter isn't a letter unless it has a Class F stamp on it. Thus, even in 2020, there's a Post Office.
But not the United States Postal Service. With the Collapse, most services of the United States Government were eliminated or drastically reduced. One of the first to go was the US. Mail. With its antiquated delivery vans and dark-ages computer tracking, the old monopoly was no match for a host of smaller, more sophisticated private organizations. As a result, most mail services throughout the US. are now provided by these private service vendors.
Night City's postal service is provided by the largest mail delivery corporation in the country, Federal Express Mail Service (a wholy-owned subsidiary of the Federal Express shipping giant). FEMS' bright blue mail kiosks can be found on street corners throughout the City(65% chance). Stamps (.95eb) and envelopes, as well as other shipping supplies, are dispensed by vending machines on top of the mail drop box. Deliveries are at 10.00 am and 3.00 pm, with pickups at 12.00 pm and 6.00 pm.
This building houses the central clearing house and dispatchers area for FEMS' fleet of delivery AVs. The actual AVs are stored on pads throughout the city, and follow daily routes that pass through this main terminal.