No you won't find anything of a political nature in and around their creamery. It has been a couple years since I have been inside but there wasn't any back then and I doubt anything has changed in that regard.
I have seen a Ben and Jerry's truck in Brenham before and the funny part is that some youths were giving the driver the finger as he was driving down the street.
It was like the devil had come to heaven to take a look around and the "little angels" didn't like them being around there.