I'm a little puzzled why Waymo hasn't contacted police about possible grand theft charges.
As things stand now, they still don't have their documents, and it's a near-certain bet that Uber does have them, and is already folding them into their engineering efforts. Given that it's Uber we're talking about, it wouldn't surprise me if they turned around and sued Waymo in a few months for using Waymo's original work that Uber now claims as its own.