Law Enforcement Officers Safety Act of 2003 - Amends the Federal criminal code to authorize qualified law enforcement officers (including certain qualified retired officers) carrying the photographic identification issued by their governmental agency, notwithstanding State or local laws, to carry a concealed firearm. Provides that such authorization shall not supersede State laws that: (1) permit private entities to prohibit the possession of concealed firearms on their property; or (2) prohibit the possession of firearms on State or local government property. Excludes from the definition of "firearm" any machine gun, firearm silencer, or destructive device.