As used in this chapter, the following words shall have the following meanings:
Any business premises operated for profit or any place of amusement or entertainment or public education to which the general public is invited or permitted, including parking lots adjacent thereto or connected therewith.
The act personally of idling, standing around, remaining, tarrying or collecting or gathering with a group or crowd of people on any commercial premises or on any alley or open space adjoining any commercial premises without conducting any lawful business with the owner or operator there or, having patronized such business establishment, to remain on such premises or adjoining alley or open space an unreasonable length of time after having been directed to leave by the owner or tenant of said commercial premises or the authorized agent of such owner or tenant of said commercial premises and a police officer.