Operation "This Will Likely End Badly" is a go, apparently.
Never mind the obvious things, like bad weather and noise. What happens if one of these things gets 1) shot at, 2) stolen, or 3) crashes into somebody's house? The liability issues alone would be off the charts.
At least human drivers have some discretion over where they leave packages. If they consider a house or neighborhood unsafe or insecure, they won't leave the package. A drone can't do that, obviously.