(A) No person shall drive a vehicle on a street within the corporate limits of the town at a speed greater than reasonable and prudent under the conditions then existing.
(B) Except as otherwise provided in this title, it shall be unlawful to operate a vehicle in excess of the following speeds:
(1) Twenty mph in any district zoned “Residential,” and the town shall cause signs to be erected giving notice of such speed limit; however, the speed limit on State Highway 11, State Highway 241, and any other street or road maintained by the state may be established by the state and may vary from the provisions set forth hereinabove, and shall be as indicated by signs erected to give notice of authorized speed limit; or
(2) At a rate of speed in excess of the speed indicated by signs erected giving notice of the authorized speed limit.
Penalty, see § 70.99