(b) The provisions of this section shall not apply to
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(3) the carrying of a knife, the edged portion of the blade of which is four inches or more in length, by
(A) any member of the armed forces of the United States, as defined in section 27-103, or any reserve component thereof, or of the armed forces of the state, as defined in section 27-2, when on duty or going to or from duty,
(B) any member of any military organization when on parade or when going to or from any place of assembly,
(C) any person while transporting such knife as merchandise or for display at an authorized gun or knife show,
(D) any person who is found with any such knife concealed upon ones person while lawfully removing such persons household goods or effects from one place to another, or from one residence to another,
(E) any person while actually and peaceably engaged in carrying any such knife from such persons place of abode or business to a place or person where or by whom such knife is to be repaired, or while actually and peaceably returning to such persons place of abode or business with such knife after the same has been repaired,
(F) any person holding a valid hunting, fishing or trapping license issued pursuant to chapter 490 or any saltwater fisherman carrying such knife for lawful hunting, fishing or trapping activities, or
(G) any person while participating in an authorized historic reenactment;
(4) the carrying by any person enrolled in or currently attending, or an instructor at, a martial arts school of a martial arts weapon while in a class or at an authorized event or competition or while transporting such weapon to or from such class, event or competition;
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