Troy it was most likely a neighbor. Drivers are not notified immediately, sometimes for days or even weeks for missing packages.
Pride in what we do is as scare as a good work ethic. This applies not only to Amazon, but most aspects of life.
Upscale neighborhoods like yours are not uncommon. I consider neighborhoods like yours to be easy deliveries. Long, unpaved, rural driveways are another story. No matter, we are to always take the package to the customers door. It is in our own best interest to put the package inside your gate. Amazon holds it against us if a package goes missing.
Well done on the "thumbs down"! Amazon has a strict rating system. Fantastic (like me

), great, fair, at risk and deactivated. They even keep track of customer compliments. I have over 1200 compliments this year. I assume they keep track of complaints. I can't say, I've never had a complaint. Sooner or later the "scum bags" will be gone. I've been an Amazon contractor for almost 6 years. I only see a handful of familiar faces, Amazon employees and contractors. Amazon has no mercy for poor performance or a lack of integrity.
I almost had a complaint once. A raised pickup truck was tailgating me for blocks. Repeatedly sounding his horn. Finally I stopped, yelling at him, F&#$ you, you redneck mother f$%&er. He immediately turned left onto another street. I continued another half block to my stop. My customer, a young lady was sitting on her porch laughing. Embarrassed, I apologized. She said "don't worry, he is an asshole" and continued laughing.
I learned my lesson, never yell at people in the neighborhood I have deliveries in. If I'm just passing through, that's a different story.
I'm glad you got your package! Have a cup of coffee on me.