Thanks for the replies and feedback.
A bit more info for those who asked. My son is 25 years old and active military, stationed in Arkansas. The transgression happened off-base shortly after he was stationed there, he was still getting used to knowing his way around down there and just had a plain old brain fart.
Cop pulled him over, gave him a ticket. My son goes in front of an Arkansas judge at traffic court a few weeks later, says I did it and I'm sorry. Judge asked if he was military, my son said yes, the judge said lots of new airmen get pinched near base, reduced the fine significantly, and said get out of here and be more careful.
Thing is, my son has an Illinois driver's license, and it was the IL Secretary of States' office that got wind of the ticket and mailed him the suspension letter just now, three months after he appeared in Arkansas traffic court.
Stay tuned, will let folks know how things develop. Thanks again.