At the time set for hearing protests, the city council shall proceed to hear and pass upon all protests made as required by Section 3.128.130 of this chapter and its decision shall be final and conclusive. The city council may adjourn the hearing from time to time, any such protest may be withdrawn by the owner making same, in writing, at any time prior to the conclusion of said protest hearing or any such adjournment thereof. (Prior code § 55.03.304)