Driving through or around safety zone. (a)  Through zones.-- No vehicle shall at any time be driven through or within a safety zone. (b)  Around zones.-- Traffic may move on either side of a safety zone unless prohibited from driving to

§ 3546.  Driving through or around safety zone. (a)  Through zones.-- No vehicle shall at any time be driven through or within a safety zone. (b)  Around zones.-- Traffic may move on either side of a safety zone unless prohibited from driving to the left of the zone by the installation of an official traffic-control device as provided in this title.