Walmart picks DC for in-home delivery
Walmart is taking grocery delivery to the next level, and D.C. is one of seven cities where the retailer is testing in-home delivery — as in,
literally delivered inside of customers’ homes. Customers schedule installation of a smart lock for a door or garage. The lock is about $50, but installation is free.
Walmart says deliveries are handled by specially trained, tenured Walmart employees who will wear a camera on their vest to record the delivery in real time and which customers can watch on their phones. The code for the locks changes with each delivery.
In addition to groceries, the in-home delivery includes household items and general merchandise available through the Walmart app. Returns are also free, and do not require a trip to a Walmart store. Customers can leave items to be returned in their home for pickup through the same process.
Walmart has grown to become the largest grocery seller in the U.S.
https://wtop.com/consumer-news/2021/11/walmart-picks-dc-for-in-home-delivery/
= new reply since forum marked as read
then folks might find their groceries delivered to a completely different building. 
I would always track it online and contact the driver if they go astray.