Sec. 2. All indebtedness, bonds, or obligations incurred, created, or issued under the authority of this article:
(1) are payable solely out of the building facilities fund and the property, fees, income, and funds pledged or mortgaged as authorized; and
(2) may not be or become an indebtedness of or liability against the state of Indiana or a state educational institution, except to the extent of the property, fees, income, and funds pledged or mortgaged as authorized.