Jerry, Here in Alaska, when you show the DMV your DD214, they will make a notation on your driver's license that you're a veteran. Tennessee has the same kind of program.
LINK, so the next time you renew your driver's license, remember to take your DD214 with you.
I don't know, but I'll bet If you sent Jim Carter a copy of your DD214 and a picture of your driver's license, they'd sign you up for the discount.