The legislative authority of any county may budget, in accordance with the provisions of chapter
36.40 RCW, and expend any portion of the county road property tax revenues for any service to be provided in the unincorporated area of the county notwithstanding any other provision of law, including chapter
36.82 RCW and RCW
84.52.050 and
84.52.043. County road property tax revenues that are diverted under chapter
39.89 RCW may be expended as provided under chapter
39.89 RCW.