Makes me think of Miniatur Wunderland's "self-charging" system: https://www.youtube.com/watch?v=ZC8aOLWR134

It's the world most complex model railway with cars (not just trains) that go around in predetermined routes, and also go to the charging station when their battery is low. And I guess Waymos are a version of that but with human-scale! (Oh they still need humans to plug the charging cables into them).

I wonder if they park themselves or if the maintenance people park them...

Also, the footage feels like Satellite Reign https://www.youtube.com/watch?v=VFZVXG0g40Q (or the original game, Syndicate Wars)