Notwithstanding anything contained in this chapter, the proceeds received from the sale of bonds and the tolls or other revenues received from the operation of the toll tunnel may be used to defray any expenses incurred by the authority in connection with and incidental to the issuance and sale of bonds for the acquisition or construction of the toll tunnel, including expenses for the preparation of surveys and estimates and the making of inspections and examinations as may be required by the purchasers of the bonds, except that the proceedings authorizing the issuance of such bonds may contain appropriate provisions governing the use and application of the bond proceeds and toll or other revenues for the purposes specified in this section.