It is unlawful for any person to congregate with a group of three or more other persons at such times as there are acts of conduct within the group which create a substantial risk of causing injury to any person, or substantial harm to property, and to refuse or fail to disperse when ordered to do so by a peace officer engaged in enforcing or executing the law. Every person who is convicted of a violation of this section is guilty of failure to disperse.
(Ord. 949, 1983)
A person is guilty of disorderly conduct if he:
(1) 
Uses abusive language and thereby intentionally creates a risk of assault; or
(2) 
Intentionally disrupts any lawful assembly or meeting of persons without lawful authority; or
(3) 
Intentionally obstructs vehicular or pedestrian traffic without legal authority.
(Ord. 949, 1983)