(a) The operation of a personal delivery or mobile carrying device in a pedestrian area or on the side or shoulder of a highway is governed exclusively by:
(1) this subchapter; and
(2) any applicable regulations adopted by a local authority that are not inconsistent with this subchapter, as authorized under Section 552A.0009.
(b) For the purposes of this title, including Section 545.422, a personal delivery or mobile carrying device operated in compliance with this subchapter is not considered to be a vehicle.