Md. Code, Alcoholic Beverages and Cannabis § 11–2001

(a) (1) Unless otherwise provided in this title, from 2 a.m. to 6 a.m. on any day, an individual may not consume alcoholic beverages in a premises licensed under this title.

(2) An owner, an operator, or a manager of a premises licensed under this title may not knowingly allow consumption of alcoholic beverages that is prohibited under paragraph (1) of this subsection.

(b) A person who violates this section is guilty of a misdemeanor and on conviction is subject to a fine not exceeding $50.