At the time in question, the law required minor employees to clock out at 9PM so that they could be home by 10PM curfew; it seems to have been liberalized some. However, if Beck was working at KUBE after midnight as a minor, then KUBE was violating the law.
BTW, I had to pay an amnesty on my speeding ticket.
My guess is, he was probably working weekends as a part-time employee.