I just signed up and actually skimmed the privacy policy (because hey, it's Alphabet). They record video of you during the ride and didn't mention anything that I caught about ever deleting it. I get that they need video in case I do bad stuff in the back, but it's really disappointing that they didn't bother reassuring you like "we delete it after a month" or something.

I'm hoping I just missed that line. But I signed up anyway, so I guess that says more.