A sum may be withdrawn by the authority from the funds available for the support of the authority without at the time furnishing vouchers and itemized statements. This sum shall be used as a revolving fund for payments for the care of persons paroled to private homes as provided in Section 1767.5. At the close of each fiscal year, or at any other time, upon demand of the Department of Finance the money so drawn shall be accounted for and substantiated by vouchers and itemized statements submitted to and audited by the State Controller.