SpaceX actually leased 39A launch pad from NASA for 20 years, back in 2014, after a fight with Bezos over that.
Look it up.
Plus SpaceX can launch from Boca Chica if they really needed to.
I know that I don’t need to look it up, since when has that stopped the Government, Musk could take the Government to court but that could cost a fortune and take time to resolve, the point is Musk is angering all the right people who can make his life miserable