If a school district or county superintendent of schools decides to discontinue its transportation services, any unencumbered funds remaining in the restricted home-to-school transportation account after transportation services are discontinued shall be transferred to the general fund of the district or county superintendent.
In the fiscal year in which the funds are transferred, the Superintendent of Public Instruction shall reduce the state apportionment pursuant to Section 2558 or 42238 to the district or county superintendent by the amount of the funds transferred from the restricted home-to-school transportation account to the general fund of the district or county superintendent, exclusive of reimbursements for prior year expenditures to Section 41851.5.