She had no choice. They are federal prisoners. She couldn't leave them with the county or state officers. From the time she picks them up from some federal location until she brings them back to that federal location, they are her responsibility. She may have had to cross state lines in moving them. That is the US Marshall's purpose. Crossing state lines which state/county LEOs can't do.
Okay, well I wasn’t sure. So as I suspected though, his charge of kidnapping is pure and utter BS.