Why are gun's outlawed at Sarah Palin's speechs, even registered ones?

Because they're worried about politicians being assassinated.

I think you have answered your own question " the rules for the Lubbock Civic Center regarding firearms on the premises REMAIN the SAME.

Its the rules of the Civic Center not Sarah.

Any political subject will take necessary security measures for their protection. Our government will use local law enforcement and secret service for protection . Palin is back in the private sector so she probably uses private security. They wisely decided, no weapons.

That's a no brainer . Shes afraid she would get shot.The republicans are smarter than the Democrats. Obama Thinks that These people love Him. He doesn't Know How dirty the Republicans are. He doesn't Know they will Try to kill him, his wife and His Children. But Sarah palin and the republicans Know and they will Take precautions., Because they are Dirty and Dirty people always take Precautions

In Texas you cannot bring a concealed weapon into a government building, i.e., Civic Center. If it were a theatre, you could do it.

Because Palin is an easy target.