In this section the following words have the meanings indicated. “Demonstration” means one or more persons demonstrating, picketing, speechmaking, marching, holding a vigil, or engaging in any other similar conduct that involves the communication or expression of views or grievances and that has the effect, intent, or propensity to attract a crowd or onlookers. “Demonstration” does not include the casual use of property by visitors or tourists that does not have the intent or propensity to attract a crowd or onlookers. “Firearm” means a handgun, rifle, shotgun, short–barreled rifle, short–barreled shotgun, or any other firearm, whether loaded or unloaded. “Firearm” does not include an antique firearm. “Handgun” has the meaning stated in § 5–101 of the Public Safety Article. “Law enforcement officer” means: a member of a police force or other unit of the United States, the State, a county, municipal corporation, or other political subdivision who is responsible for the prevention and detection of crime and the enforcement of the laws of the United States, the State, a county, municipal corporation, or other political subdivision; a park police officer of the Maryland–National Capital Park and Planning Commission; a member of the University System of Maryland Police Force; and any military or militia personnel directed by constituted authority to keep law and order. “Public place” means a place to which the general public has access and a right to resort for business, entertainment, or other lawful purpose. “Public place” is not limited to a place devoted solely to the uses of the public. “Public place” includes: the front or immediate area or parking lot of a store, restaurant, tavern, shopping center, or other place of business; a public building, including its grounds and curtilage; a public parking lot; a public street, sidewalk, or right–of–way; a public park; and other public grounds. This subsection does not apply to a law enforcement officer. A person may not have a firearm in the person’s possession or on or about the person at a demonstration in a public place or in a vehicle that is within 1,000 feet of a demonstration in a public place after: the person has been advised by a law enforcement officer that a demonstration is occurring at the public place; and the person has been ordered by the law enforcement officer to leave the area of the demonstration until the person disposes of the firearm. A person who violates this section is guilty of a misdemeanor and on conviction is subject to imprisonment not exceeding 1 year or a fine not exceeding $1,000 or both.