Just after 7 a.m. on Saturday, Nov. 18, as the sun was rising in the Gulf of Mexico, Noel Rangel, a 26-year-old native of Brownsville, Texas, was brought unwillingly into wakefulness by an uninvited sensation: The richest man in the world was shaking him. Or rather, his entire apartment. His bed was rumbling, his windows rattling. “I could hear the glass,” he said. He was confused. He woke as if Elon Musk himself had grabbed him by the shoulders.