Notwithstanding the other provisions of this subchapter or Chapters 2155, 2156, 2157, and 2158, the commission shall give a preference, when leasing space in a state-owned building for the operation of a vending facility as defined by Chapter 94, Human Resources Code, to an existing lessee, licensee, or contractor who operates a vending facility on the property if:
(1) the existing lessee, licensee, or contractor has operated a vending facility on the property for not less than 10 years;
(2) Chapter 94, Human Resources Code, does not apply to the property;
(3) the commission finds there is a history of quality and reliable service; and
(4) the proposal of the existing lessee, licensee, or contractor for the right to continue operation of the facility is consistent with the historical quality of service and the historical retail pricing structure at the facility.