In MOST states, there's not arrest LAW for speeding in general. It's mostly up to the LEO's discretion whether or not to bring you in. I have also never seen a FELONY charge be imposed for a speeding violation, unless bodily harm, and/or alcohol was involved. Speeding is a very relative term. It can be 10mph over, or 80mph over. It's still speeding. Traffic/weather conditions etc, play a large role in how the LEO wants to handle the situation.