Md. Code, Criminal Law § 6–506

(a) Unless authorized by a railroad company that maintains offices in the State, a person may not:

(1) buy, sell, or engage in the business of buying or selling railroad tickets or the unused parts of railroad tickets;

(2) act as vendor or broker of whole or partly used railroad tickets;

(3) solicit personally or by sign, advertisement, or otherwise to buy or sell railroad tickets; or

(4) aid or abet in buying or selling railroad tickets in the State.

(b) A person who violates this section is guilty of a misdemeanor and on conviction is subject to imprisonment not exceeding 6 months or a fine not exceeding $100 or both.

(c) Each act of buying or selling railroad tickets is a separate violation.