TexasCHLforum.com

PC §46.03. PLACES WEAPONS PROHIBITED. (a) A person commits
an offense if the person intentionally, knowingly, or recklessly possesses
or goes with a firearm, illegal knife, club, or prohibited weapon
listed in Section 46.05(a):
(1) on the physical premises of a school or educational institution,
any grounds or building on which an activity sponsored by a school or
educational institution is being conducted, or a passenger transportation
vehicle of a school or educational institution, whether the school or
educational institution is public or private, unless pursuant to written
regulations or written authorization of the institution;
(2) on the premises of a polling place on the day of an election or
while early voting is in progress;
(3) on the premises of any government court or offices utilized by
the court, unless pursuant to written regulations or written authorization
of the court;
(4) on the premises of a racetrack; or
(5) in or into a secured area of an airport.
(6) within 1,000 feet of premises the location of which is designated
by the Texas Department of Criminal Justice as a place of
execution under Article 43.19, Code of Criminal Procedure, on a day
that a sentence of death is set to be imposed on the designated
premises and the person received notice that:
(A) going within 1,000 feet of the premises with a weapon listed
under this subsection was prohibited; or
(B) possessing a weapon listed under this subsection within
1,000 feet of the premises was prohibited.
(b) It is a defense to prosecution under Subsections (a)(1)-(4) that
the actor possessed a firearm while in the actual discharge of his official
duties as a member of the armed forces or national guard or a
guard employed by a penal institution, or an officer of the court.
(c) In this section:
(1) "Premises" has the meaning assigned by Section 46.035.


So, I guess, if the main doors aren't 30.06 posted you should be OK.