Maryland Code, Criminal Law § 8-903

(a)(1) A person may not intentionally issue, sell, or give to an unauthorized person a ticket or instrument for the transfer from a conveyance on one passenger line or route to a conveyance on another line or route of the same or a different carrier.

(2) Unless authorized to do so, a person may not intentionally receive a ticket or instrument for the transfer from a conveyance on one passenger line or route to a conveyance on another line or route of the same or a different carrier.

(1) for the first violation, a fine not exceeding $100; and

(2) for each subsequent violation, imprisonment not exceeding 90 days or a fine not exceeding $500 or both.