SAN FRANCISCO — The inside of the van was lined with plastic. The driver was masked and ready to go. There was a seat for just one passenger.
Gregory Sanchez eyed the setup warily. Mr. Sanchez was 64 and homeless, and the van was there to ferry him from a sidewalk tent to a room where he could shelter from the pandemic. It was good news, blessed news, he said. It was also a little creepy.