Odd Bill Posting

I was stopped at lights on route 100 today and looked over to see the following sticker attached to the median barrier. Very odd from a couple of perspectives: firstly, why risk life and limb to post it there, and secondly what is the message supposed to mean?
Other than countries that are run by dictators or religious fundamentalists, the US must be the only "free" country that uses the term "liberal" as an offensive word. I find this totally bizarre.
I assume some disgruntled fundamentalist popped this sticker here, but on the other hand maybe it's just a complaint that someone put up the safety barrier. In any case, I am pretty confident to state tHis iS nOt aRt, even Liberal Art ;-)