The driver of any vehicle shall obey the traffic-control instructions of any law enforcement officer or persons authorized by the Commissioner of Highways or by proper local authorities to operate traffic control devices, act as flagmen or operate authorized vehicles engaged in work at or near the site of street or highway construction maintenance work, for the purpose of regulating, warning or guiding traffic, subject to the exceptions granted the driver of an authorized emergency vehicle in this Traffic Code.
(WVaC 17C-3-4a)