(a) The adoption of this Code shall not affect the term of office or the right to hold office of any person who is in office on December 31, 1987, unless otherwise expressly provided or unless the office is abolished by the adoption of this Code.
(b) The adoption of this Code shall not affect the compensation, expenses, per diem, allowances, retirement, or other rights of any officer or employee of this state or of any county, municipality, district, improvement district, school district, institution of higher education, political subdivision, authority, or other governmental entity within this state, or of any agency, department, division, section, board, commission, committee, or council of any of the above, unless otherwise provided in this Code.