Unless otherwise directed by a bicycle signal as provided in Section 21456.3, an operator of a bicycle shall obey the provisions of this article applicable to the driver of a vehicle.
(b)
Whenever an official traffic control signal exhibiting different colored bicycle symbols is shown concurrently with official traffic control signals exhibiting different colored lights or arrows, an operator of a bicycle facing those traffic control signals shall obey the bicycle signals as provided in Section 21456.3.