The last time this happened to me, Amazon's CSR told me that "GPS says it was delivered nearby your building." To which I responded that there were multiple suites inside the building. She then asked if my suite had a mailroom, and I repeated that I had a one-room suite.

Indeed they are doing exactly that. I get a notification when the driver is a few stops away from me along with a map. They also take a picture of the package where they left it and it is all visible from the Amazon app.