Thanks for all the advice, EVERYONE! My wife and I were both very tired and became very frustrated during the un-hitch attempt that I dont recall all the steps, but I am pretty sure we ended up lowering the tongue jack enough to un-hook the ball then raised it up with lynx leveler blocks (5 or 6, maybe)then got the stuck bar loose somehow, not sure how.
I do have a follow-up question: is the sway control achieved by the friction between the square bars and the L shaped brackets, or the friction of the square bar coupler turning on it's pivot point?
