A. The driver of any vehicle shall obey the instructions of any official traffic control device applicable thereto placed or held in accordance with the provisions of this chapter and this title, unless otherwise directed by a police officer, subject to the exceptions granted the driver of an authorized emergency vehicle in this title.
B. It is unlawful for any person to leave the roadway and travel across private property to avoid an official traffic control device.
C. No provision of this chapter, for which official traffic control devices are required, shall be enforced against an alleged violator if, at the time and place of the alleged violation, an official device is not in proper position and sufficiently legible to be seen by an ordinarily observant person.
D. Whenever any official traffic control device is placed or held in position approximately conforming to the requirements of this chapter and purports to conform to the lawful requirements pertaining to such device, such device shall be presumed to have been so placed or held by the official act or direction of lawful authority, and be in compliance with the requirements of this chapter, unless the contrary shall be established by competent evidence. (2016 Code)