Although it appears the officer acted the way he did because your wife told him he was acting like a jerk, you admit to having an open container of alcohol which is a violation. Only you can decide if you want to press the case and go to court or settle it by paying the ticket.
In Arkansas there is no open container law. Our law is for drinking on the highway. The language of the statute is very specific. Since you and your wife had not been drinking on the highway there is no violation. It may not be worth hiring an attorney (it is only a class c misdemeanor and has a realatively low fine), but it is certainly worth fighting if you are so inclined. The Statute can be found at Arkansas Code Annotated 5-71-212. It is under part c of the public intoxication statute. Good luck.