A camera caught his car and licence plate number, leading to the traffic stop.
Sounds more like blind luck than great detective work to me..
Of course it was; these donut holes accomplished zip for 30 years, then all of a sudden the evidence walks in the door to solve the case.
So of course they round up all the suits for the Golden Doughnut Awards on TV to congratulate each other for opening that door so the evidence could walk in.