Ala. Code § 37-8-23

Any corporation, partnership, association or person owning or operating a railroad or other utility transporting passengers or property, or officer, servant or agent of any such, who shall knowingly charge or collect a fee or charge at a higher rate for the transportation of passengers or property than prescribed or authorized by law, or fixed by the Public Service Commission, shall be guilty of a misdemeanor, and shall, upon conviction, be fined not less than $50.00 for each offense.