The throwback drive-in, conceived years ago when the world's richest man was still a Los Angeles hometown hero, bows in a radically different era.

When Elon Musk’s highly anticipated Tesla Diner opened its doors in Los Angeles on July 21, it garnered significant media attention, with customers lining up for hours to try chef Eric Greenspan’s pie shakes and classic burgers served in Cybertruck-shaped boxes. This past weekend, however, the lines looked a little different.

"Musk is CEO -- the buck stops with him. As a CEO in a competitive environment, he's the one who has to have the vision and lead the troops," David Meier, a senior investment analyst at The Motley Fool, told ABC News. "But there's a lot going on in the world that impacts Tesla's business."