I have no law background. It was my understanding, if a military personnel was under orders, local law officials could not interfere with that person in the performance of his official duties. When the Navy paid in cash, the personnel that went to pick up the money routinely carried Thompson sub machine guns. Similarly, when moving brig prisoners on or off the base..
The Coast Guard is different than other military services because it is not bound by the posse comitatus act (I believe) because Coast Guard personnel can enforce some Federal laws.
The interesting thing about this case is that the person was not on official duty IMHO
I agree. And I suspect when the Coast Guard is done dealing with him, he's unlikely to retain his LEO status. The military services generally have an extremely low tolerance for their members violating laws. This guy pulled a three-fer (speeding, driving with suspended license, running from warrant) and then used his Coast Guard status to get off the hook on number four.