You'd think this would count as some sort of fraud, at least...
TITLE 18 > PART I > CHAPTER 33 > § 702
§ 702. Uniform of armed forces and Public Health Service
Whoever, in any place within the jurisdiction of the United States or in the Canal Zone, without authority, wears the uniform or a distinctive part thereof or anything similar to a distinctive part of the uniform of any of the armed forces of the United States, Public Health Service or any auxiliary of such, shall be fined under this title or imprisoned not more than six months, or both.