Well it may turn out OK.
I called my post office and I actually got to talk to my mail lady. She said that she would make me her first stop today and that my package should be in one of the lock boxes. She will call me and drop it off in person. She will also go to the neighbor who's package I opened and had to deliver and explain to her what happened. I just hope she did not put the key in someone else's mail box and they got my package, and if so I hope they
bring it to me...
Now all I can do is wait to see what happens.