(1) It is unlawful for any person to enter or remain in any public building or on any public property or to conduct himself or herself in or on the same in violation of any order, rule, or regulation concerning any matter prescribed in this subsection (1), limiting or prohibiting the use or activities or conduct in such public building or on such public property, issued by any officer or agency having the power of control, management, or supervision of the building or property. In addition to any authority granted by any other law, each such officer or agency may adopt such orders, rules, or regulations as are reasonably necessary for the administration, protection, and maintenance of such public buildings and property, specifically, orders, rules, and regulations upon the following matters:

(a) Preservation of property, vegetation, wildlife, signs, markers, statues, buildings and grounds, and other structures, and any object of scientific, historical, or scenic interest;

(b) Restriction or limitation of the use of such public buildings or property as to time, manner, or permitted activities;

(c) Prohibition of activities or conduct within public buildings or on public property which may be reasonably expected to substantially interfere with the use and enjoyment of such places by others or which may constitute a general nuisance or which may interfere with, impair, or disrupt a funeral or funeral procession;

(d) Necessary sanitation, health, and safety measures, consistent with section 25-13-113, C.R.S.;

(e) Camping and picnicking, public meetings and assemblages, and other individual or group usages, including the place, time, and manner in which such activities may be permitted;

(f) Use of all vehicles as to place, time, and manner of use;

(g) Control and limitation of fires, including but not limited to the prohibition, restriction, or ban on fires or other regulation of fires to avert the start of or lessen the likelihood of wildfire, and the designation of places where fires are permitted, restricted, prohibited, or banned.

(2) No conviction may be obtained under this section unless notice of such limitations or prohibitions is prominently posted at all public entrances to such building or property or unless such notice is actually first given the person by the officer or agency, including any agent thereof, or by any law enforcement officer having jurisdiction or authority to enforce this section.

(3) (a) Except as otherwise provided in paragraphs (b) and (c) of this subsection (3), any person who violates subsection (1) of this section is guilty of a class 3 misdemeanor.

(b) Any person who violates any order, rule, or regulation adopted pursuant to paragraph (g) of subsection (1) of this section is guilty of a class 2 misdemeanor and shall be assessed a fine of not less than two hundred fifty dollars and not greater than one thousand dollars. The fine imposed by this paragraph (b) shall be mandatory and not subject to suspension. Nothing in this paragraph (b) shall be construed to limit the court's discretion in exercising other available sentencing alternatives in addition to the mandatory fine.

(c) Any person who violates any order, rule, or regulation adopted pursuant to paragraph (c) of subsection (1) of this section concerning funerals or funeral processions is guilty of a class 2 misdemeanor.