Every employer of a part-time elected official of an elected body shall be required to provide the employee with a flexible work schedule to accommodate the employee’s attendance at the sessions necessary for the part-time elected officials of elected bodies wherever practical within the reasonable operation of the employer’s business. An employer shall not be in violation of this provision if the employer cannot reasonably provide alternate work hours for an employee or if the service of the elected official would necessitate the hiring of additional or replacement employees. All disputes concerning compliance with this section shall be resolved under the provisions of chapter 10 of this title.