(a) In this section, "institution of higher education" and "private or independent institution of higher education" have the meanings assigned by Section 61.003.
(b) It is unlawful for any person to:
(1) trespass on the grounds of an institution of higher education or of a private or independent institution of higher education; or
(2) damage or deface any of the buildings, statues, monuments, memorials, trees, shrubs, grasses, or flowers on the grounds of an institution of higher education or of a private or independent institution of higher education.