ICE tried to pull this crap in Arizona earlier this year, requesting that local law enforcement agencies hold individuals illegally until such time that ICE officers could take custody. Unfortunately for them, it is unconstitutional for a person to be held beyond a specified period of time without being criminally charged. Local law enforcement gave ICE notification for the pending release of detainees, however ICE officials could not be troubled to appear in a timely manner to re-apprehend these individuals.
The Constitutionality of law exists for a reason. No Police State for me, yet...thank you very much.