This act shall not be construed to limit the authority of any public school to do any of the following:
(1) Maintain order and discipline on the campus of the public school in a content- and viewpoint-neutral manner;
(2) Protect the safety of students, employees, and visitors of the public school; and
(3) Adopt and enforce policies and procedures regarding student speech at school, provided that the policies and procedures do not violate the rights of students as guaranteed by the United States and West Virginia constitutions and laws.