b. Offensive language. A person is guilty of a petty disorderly persons offense if, in a public place, and with purpose to offend the sensibilities of a hearer or in reckless disregard of the probability of so doing, he addresses unreasonably loud and offensively coarse or abusive language, given the circumstances of the person present and the setting of the utterance, to any person present. "Public" means affecting or likely to affect persons in a place to which the public or a substantial group has access; among the places included are highways, transport facilities, schools, prisons, apartment houses, places of business or amusement, or any neighborhood.