Ruben Brunt hopped off a ferry, tapped his white cane against the sidewalk and held his phone to his ear to listen for directions. His destination was a white Jaguar idling a few blocks away — with no one behind the wheel. Mr. Brunt, 28, was born with a rare eye disorder. He can’t drive himself, and had never experienced the feeling of being alone in a car — until Waymo’s self-driving vehicles started navigating San Francisco’s hilly streets two years ago. Now Mr. Brunt will occasionally make