Ugh, looks like this only works if you pay for the Waymo with a Visa card, and also use that same Visa card to pay for transit. I don't use a credit card for transit in SF; I use my Clipper transit card.
I get that integrating with the Clipper system is a lot more difficult, but... c'mon.
I get that integrating with the Clipper system is a lot more difficult, but... c'mon.