It shall be unlawful for any person or group of persons to intentionally obstruct or impede the free movement of any pedestrian or vehicle, or any group of pedestrians or vehicles within, on, in, or upon any public street, sidewalk, way, path, park, wharf, parking lot, or other public property within the City of Monterey, including the ingress or egress of such pedestrian or vehicular traffic from private property, the entrances to or from which abut any such public street, sidewalk, way, path, park, wharf, parking lot or other public property.