Just send the Texas Rangers in to get him and if he pulls a gun then shoot him. If they did it at 3:30 the guy would likely be caught in his underwear before he even knew what hit him.
You don't think he should face some kind of consequences for keeping Keith Tarkington's kids from their father?
That's actually not such a bad idea. Making it clear they had no intention of pursuing a 10 year old warrant may actually help with the children situation as well.