What rank was he trying to be I wonder? Because if he was trying to impersonating a Petty Officer, he would fall under violate of impersonating a federal officer. 14 USC 89 and 19 USC 1401 basically makes commissoned officers, warrent officers, and petty officers federal officers...which under 18 USC 912 states:
Whoever falsely assumes or pretends to be an officer or employee acting under the authority of the United States or any department, agency or officer thereof, and acts as such, or in such pretended character demands or obtains any money, paper, document, or thing of value, shall be fined under this title or imprisoned not more than three years, or both.
So those Valor Act complainers who say it is a freedom of speech and kiss my booty.