The driver of any vehicle shall obey the instructions of any official traffic control device applicable thereto placed in accordance with the provisions of this chapter, unless otherwise directed by a traffic or police officer, and subject to the exceptions granted the driver of an authorized emergency vehicle in § 32-26-15 . A violation of this section is a Class 2 misdemeanor. Source: SL 1963, ch 274 , § 1; SL 1989, ch 255 , § 192.