What happens if one were to keep leaving doors open? I wonder if they would ban you or something.

Any time I've loaded something into the trunk of a Waymo, it pre-emptively pops the trunk when I'm getting out _for_ me and reminds me to get my things from the trunk, so this is... surprising as a failure mode. Wondering if there was some issue with the latch/opening system, because it's definitely programmed to work the right way. (Or he tossed his stuff into the trunk from the main cabin, but... it's a pretty low hatch ceiling there.)

tbh, I do that with Uber/Lyft, too

For what it’s worth, I always leave the door I exited out of open while removing luggage from the trunk. It’s just safer. Edit: from any uber or lyft

It'd be nicer if they sent someone with his luggage TO HIM rather than making HIM take his time to go on a tour to the depot, though.

No, it doesn't. It used to be when the airline lost your bag they would get it to you no matter what. They own their mistake, and make it right to the best of their ability. In the most egregious case I can recall, delivering skis and poles 4hr+ from the airport into a remote mountain village ca. 2003. This is how you build trust in your brand--when you fuck up, you take ownership and make it right. You don't just shrug it off and throw a gift card on the floor like "take it or leave it idgaf".

If I steal your luggage, do you expect to be paid to get it or that I return to you?

Waymo should have white-gloved this and sent Larry Page himself to deliver the luggage. This is horrible PR. Airlines will send you their luggage if misplaced. One day Waymo will drive-off with your toddler and ask you to file for adoption if you want them back.