Notwithstanding Section 30638, all net income from fees, charges, rents, profits, or other net income arising from joint development of the property of the district which was acquired exclusively for the rail rapid transit system shall be used only for the following purposes:
As used in this section, "operating expenses" includes the expenses of operation, maintenance, and repair of all personal or real property physically or functionally related to rail rapid transit services or facilities.
Ca. Pub. Util. Code § 30638.2