Uber will require some riders to take masked selfies through the smartphone app, if any driver reports them for not wearing a mask. The Verge reports. This happened to me in a situation where I misinterpreted the meetup point on a map, rushed to find the driver and was distracted enough to forget to resecure the mask.
That brings up another point. If you go to the hospital for a necessary but small operation and test positive as a routine breakthrough case with no real symptoms, it would be a crime to ride home and you could be kept isolated from critical business interests if you had no personal backup or online access while isolated. Nobody connects all the dots.