B. A person shall not drive or move a vehicle or equipment on a highway with a lamp or device on the vehicle that is capable of displaying a red or red and blue light or lens visible from directly in front of the center of the vehicle. Lights visible from the front of a vehicle shall be amber or white. This section does not apply to either of the following:

1. 1. An authorized emergency vehicle or a vehicle on which a red or red and blue light or lens visible from the front is used by a law enforcement officer for traffic control while employed in an off-duty capacity for an entity other than the law enforcement agency or as expressly authorized or required by this chapter.

2. 2. An emergency vehicle that is solely used for hobby or display purposes and that has been issued a historic vehicle license plate pursuant to section 28-2484 if either of the following applies:

   1. (a) The lights are covered and are not activated while a person is transporting or driving the vehicle to or from a parade, authorized assemblage of historic vehicles or test.
   2. (b) The lights are activated only in a parade, for an authorized assemblage of historic vehicles or for testing purposes.

C. Except as provided in subsection D or E of this section, flashing lights on motor vehicles are prohibited except either:

1. 1. On authorized emergency vehicles, school buses or snow removal equipment.
2. 2. As warning lights on disabled or parked vehicles.
3. 3. On a vehicle as a means for indicating a right or left turn.