whats the address? I want to take a look on google earth.
I always ship something sold with a delivery confirmation and insurance, if delivered that ends your responsibility and insurance covers the loss or damage while enroute not on site. Anything over like $100.00 or with low feedback I always want a signature on but in the end a buyer should know their neighborhood.
I would also call the police and the local UPS agent. 9PM seems odd to me, did he give you the link or did you go to ups's website and enter your own tracking number?
At my old house the UPS / fed ex guys knew me and dropped my small packages over the back fence onto my back door stoop.