Every bona fide permanent resident of the State of Alabama who served in the United States Army, Navy, or Marine Corps during World War I between April 6, 1917, and November 11, 1918, in the Spanish-American War between April 21, 1896, and July 4, 1902, or any soldier, sailor, or other person serving in the Armed Forces of the United States between December 7, 1941, and the termination of World War II by the signing of a definitive treaty of peace, or at any other time past, present or future when the United States was, is or shall be engaged in hostilities with any foreign state, whether as a result of a declared war or not, and who, at the time of his application for license as hereinafter provided for, shall be physically disabled to the extent of 25 percent, or more, shall, upon sufficient identification and upon sufficient proof of such disability and upon sufficient proof of being a permanent resident of this state, and upon the production of an honorable discharge or other proof of termination of honorable service from the United States Army, Navy, or Marine Corps during World War I, the Spanish-American War or from the Armed Services of the United States within the respective limits hereinabove prescribed, be exempt from business or occupational license taxes to the extent and subject to the conditions hereinafter specified; provided, that no exemption, deduction, or commutation shall be allowed any person from the license or tax on what is commonly known as rolling stores; nor shall said exemption, deduction, or commutation be construed as relieving any person from the payment of any license tax for the registration or operation of any motor vehicle upon the public highways of this state, unless otherwise provided by law.