Federal Agencies only operate within any State WITH THEIR PERMISSION. Rescind All contracts,agreements... with Fedzilla, Then arrest and Jail All Federal Employees within the State. No State is required to Follow Federal law if it believes it is Unconstitutional. Challenge EVERY FEDERAL AGENCY on Constitutional Grounds, Arrest every single person for Violating the rights of their citizens. Use only State Laws, the only recourse for imprisoned Federal Employees is the Presidential Pardon. Force them to Defend their very Jobs as being Constitutional, they cannot defend their actions.
I almost forgot, this is the very reason for STATE MILITIAS.
A State can Also make it a FELONY for any person employed by any Federal Agency to use,own, or posses FIREARMS within their STATE. unless of course they are not a Free, Independent, Sovereign STATE.