Md. Code, Local Gov't § 11-301

(a) In this subtitle the following words have the meanings indicated. (b) “Curfew hours” means the hours between midnight and 5:00 a.m. (c) “Establishment” means a privately owned place of business operated for profit to which the public is invited. (d) “Guardian” means a person who is appointed by a court as a guardian. (e) (1) “Public place” means a place to which the general public has access for a lawful purpose. (2) “Public place” includes: (i) a public street, a sidewalk, an alley, a highway, and a right–of–way of a public street or highway; and (ii) the common areas of a transport facility, a school, a hospital, an apartment building, an office building, a shopping center, a park, a playground, a parking lot, a theater, a restaurant, a bowling alley, a tavern, a cafe, an arcade, and a shop. (f) “Remain” means to: (1) linger unnecessarily in a public place; or (2) fail to leave the premises of an establishment or a public place when asked by a law enforcement officer or an employee of the establishment or public place.