Don't listen to Baddog, he's not licensed!!
I have no idea either, however I did get a speeding ticket for more than 30 over in Georgia a few years back, and never paid the ticket. I read the only issue I would ever have is MAYBE getting pulled over again in Georgia (but still unlikely a problem) or if I ever wanted to apply for a drivers license in Georgia.
I have since entered the USA many times by plane and car, with no problems.