(a) This chapter may not be construed to repeal any existing benefit provided by statute or ordinance concerning police officers' or firefighters' compensation, pensions, retirement plans, hours of work, conditions of employment, or other emoluments except as expressly provided in a ratified meet and confer agreement. This chapter is in addition to the benefits provided by existing statutes and ordinances.
(b) This chapter may not be construed to interfere with the free speech right, guaranteed by the First Amendment to the United States Constitution, of an individual firefighter or a police officer to endorse or dissent from any agreement.