All they need is a few sheriffs with the b@lls to do their Constitutional duty. Someone needs to school Sheriffs all over the country as to the power that they legally have.
In every TV show or movie they always show local authorities ceding their authority to any alphabet agency that shows up.
That's because the Fed is backed by the potential overwhelming military power of the U.S. Armed Forces. We have to do our best to MATCH these forces, no strings attached.
Remember what happened during desegregation in the 60's? Whatever else you think of Governor Wallace's views on segregation, he was absolutely CORRECT that the federal government had NO Constitutional authority to do what they did. And what are the sheriffs of a local area going to do when they are bullied by more superiorily armed guardsmen?