(B) the person possesses or goes with a concealed
handgun that the person is licensed to carry under Subchapter H,
Chapter 411, Government Code, and no other weapon to which this
section applies, on the premises of an institution of higher
education or private or independent institution of higher
education, on any grounds or building on which an activity
sponsored by the institution is being conducted, or in a passenger
transportation vehicle of the institution;
The real question to to determine if a school located on campus qualifies as "premises of an institution of higher education or private or independent institution of higher education."
"Premises" means a building or a portion of a building. The term does not include any public or private driveway, street, sidewalk or walkway, parking lot, parking garage, or other parking area.
So would a school qualify as a building or portion of a building of an institution of higher education? Maybe. Maybe not. Maybe it depends on who owns or leases it. It sounds like a grey area. But why would they feel the need to input the changes to the 30.06 sign on school property.
I might argue that if the building is leased or owned by the university/college, that would make it a premises of the college. And by adding subsection (g) specifying the need to post a 30.06 sign, it solidifies my argument that those buildings are in fact considered university/college buildings.
In reality though, I wouldn't touch it with a 10-foot pole. Not without first discussing it with a lawyer that's very familiar with 2A law and how these things are defined. If it affected me, I would probably call up [Pre-paid legal service] (of which I am a member) and ask the lawyers there. But I'm unlikely to do so, and posting their opinion for other members here might be counter-intuitive because it would still not be legal advice, it would be hearsay.
Keep calm and carry.
Licensing (n.) - When government takes away your right to do something and sells it back to you.