30.06/07 does not apply to federal facilities as it is part of Texas law. Federal law is something else entirely:
....whoever knowingly possesses or causes to be present a firearm or other dangerous weapon in a Federal facility (other than a Federal court facility), or attempts to do so, shall be fined under this title or imprisoned not more than 1 year, or both
....The term “Federal facility” means a building or part thereof owned or leased by the Federal Government, where Federal employees are regularly present for the purpose of performing their official duties.
(2) The term “dangerous weapon” means a weapon, device, instrument, material, or substance, animate or inanimate, that is used for, or is readily capable of, causing death or serious bodily injury, except that such term does not include a pocket knife with a blade of less than 2½ inches in length.
https://www.law.cornell.edu/uscode/text/18/930
There is some room under (d)(3) that suggests that "incident to ... lawful purposes" is ok, so I think this battle can be won nationwide if the courts are reasonable.
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