The theme song from “Barney & Friends” has been blaring 24 hours a day for weeks on Palos Verdes Street in San Pedro. There are about two dozen homeless individuals who have pitched tents on the sidewalk there, and they say the blaring kids’ music is a not-so-subtle way to get them to move. “It’s psychological,” said Danielle Nunez of Street Watch LA, a mutual aid organization that helps the homeless. “It is to keep people up. They can’t have a quiet space and it’s playing at nighttime so that people literally cannot sleep.” The vacant property is run by...