Easy mistake to make! We got got delivered a whole grocery order that we didn't order recently and it was just left at our door without even the bell being rang. There was no identifying information whatsover included with the groceries. We kept it for 3 days before eating it in case someone came for it but we didn't hear anything!
Anyway in your case - surely those people at those particular addresses have had this happen before! Probably happens to them all the time!
That's crazy that the person didn't even at least knock on the door first. I mean I have left groceries at houses where nobody answered and nothing bad ever came of it. But doing that at the wrong address, that's gotta suck. Better your family eats that stuff than it going to waste.
I'm sure it is a common address confusion. There is no solution to the confusion either besides never making the mistake after you do it the first time.
Yeah they do have some types of deliveries here where they are supposed to just leave it on the doorstep without knocking. Weird but it happens. I'm pretty sure we were in when they were left.
Good luck with it all!