Md. Code, Alcoholic Beverages and Cannabis § 11–2503

(a) This section does not apply to the room of a registered guest in a hotel, motel, or hospice.

(b) Except as provided elsewhere in this title, from 2 a.m. to 6 a.m. on any day, an individual may not consume alcoholic beverages in:

(1) a restaurant, tavern, hotel, club, dance studio, or disco;

(2) a place open to the public;

(3) a place of public entertainment;

(4) a place that is licensed by the State or the county; or

(5) a place at which setups or other component parts of mixed alcoholic drinks are sold under a license issued under the Business Regulation Article.

(c) An owner or a manager of an establishment or a place specified in subsection (b) of this section may not knowingly allow consumption of alcoholic beverages between the hours provided in subsection (b) of this section.

(d) A person who violates this section is guilty of a misdemeanor and on conviction is subject to a fine not exceeding $250.