Thank you Mary, and others for your responses. He made it in just fine and their was an officer inside, when he arrived, so there were no worries. He called for a cab and waited just a few minutes. I told him there would probably be cabs waiting already, but he had called a few minutes ahead of time.
He wasn’t happy with me for worrying. I told him that’s a parent’s job. He said that was fine, but from now on worry to myself.