(a) The commission may not adopt a rule restricting advertising or competitive bidding by a person who holds a license issued under this chapter except to prohibit false, misleading, or deceptive practices by the person.
(b) The commission may not include in its rules to prohibit false, misleading, or deceptive practices a rule that:
(1) restricts the use of any advertising medium;
(2) restricts the person's personal appearance or use of the person's voice in an advertisement;
(3) relates to the size or duration of an advertisement by the person; or
(4) restricts the use of a trade name in advertising by the person.