(a) No person shall use the public streets, highways, alleys, thoroughfares, roads or avenues of the Municipality for the purpose of engaging in or playing any games or athletic activities, except public ways specifically set aside for such purposes.
(b) When authorized signs are erected indicating any street or part thereof as a play street, no person shall drive a vehicle upon any such street or highway or portion thereof except drivers of vehicles having business or whose residence is within such closed area, and then any such driver shall exercise the greatest care in driving upon any such street or highway or portion thereof.