In checking back to the original article, it says the railroad owns the land, not the SCV. What rights that may or may not give them regarding the contents of a sign that is on their land I don't know. There may be some language in the contract that the owner of the sign signed with the owner of the land that allows the landowner some control over the contents of the sign.
btw, a friend of mine is selling me a 6x6 foot piece of his farm n(in fee simple for the princely sum of $40.oo, atop a tall hill in my home county in TX, right on the north side of I-30. i plan to erect a (lighted at night) 60ft flagpole with a large THIRD NATIONAL flag, thereon.
i DARE anyone to say even one word about that, too. it will belong to me & mine, after i'm gone.
free dixie,sw