The authority in charge of the maintenance of a highway may by order, ordinance or resolution:
(1) Regulate community events or celebrations, processions or assemblages on the highways, including reasonable regulations on the use of radios or other electric sound amplification devices, subject to s. 84.07 (4).
(2) Regulate the traffic of pedestrians upon highways within its jurisdiction, including the prohibition of pedestrian crossings at places otherwise permitted by law and the erection of signs indicating such prohibition.