You are correct, without actual 30.06 verbiage at a public college football game, then 46.035 (b)(2) does not apply to a concealed carrier who is licensed.
(2) on the premises where a high school, collegiate, or professional sporting event or interscholastic event is taking place, unless the license holder is a participant in the event and a handgun is used in the event;
(l) Subsection (b)(2) does not apply on the premises where a collegiate sporting event is taking place if the actor was not given effective notice under Section 30.06.