I doubt my record shows this but I've almost been arrested once for carrying an open container. I was driving a friend's car home for him. The officer made me take the breathalyzer test several times. I was not drunk.
In the end I paid the fine because it wasn't worth hiring a lawyer over (and I did have an open container in the car even if it wasn't mine).
What I fear about decriminalization is that it will become a cash cow for local governments (I have much disdain for local and state governments in general but particularly in this case because anything that boosts revenue without increasing taxes is usually seem as a good thing).