Conceded to an audit. Upon amending my State, the amount owed on Fed is $500 less. Am I still able to file the amendment after conceding?

I conceded to a Federal Audit, they requested that I not file and amendment. The state hasn't caught the error yet so before I get audited by them I went to file and amendment for the State. When I re-ran the numbers in Turbo tax the Federal came to $500 less than what the Feds said I owed. Can I still refile the amendment for the Feds after conceding?