Package delivery systems work in a couple of different ways.

One way is to use "stars in space" in order to determine its position above earth and we can easily assume satellites can use gps to guide the package directly to its intended location.

Another way is to have one system on the package and one installed onto the intended location and have them locate each other with the package then able to find its location. Like blowing a dogwhistle for the hound to find its master.

So the question is, do we know if there are any lost packages? If not or if the question is not known, do we know what the locations are and where the "whistles" are installed?

Is this question known?? Is anyone going to be surprised to find a package with their name on it?