I agree, but I would resist going to war with the neighbor over this. If relations are otherwise okay, I'd probably even try to find a way to find something nice to say during a conversation.+1, he also must have trespassed on your property to install this. Personally, I cannot imagine anyone doing something like this without discussing with their neighbor.
It's just my opinion, but having a hostile relationship with a next-door neighbor (even one who is a complete jerk) takes so much energy and increases the stress level so much that I will go to great lengths to avoid it. No amount of protesting and going to court is going to result in the removal of that fence, and even an imposed cosmetic change is going to come at a big cost.
Now, if things devolve into the open conflict with the neighbor, then the gloves come off and any legal tool can be put to use. But I wouldn't anticipate "winning" anything (any more than anyone ever "wins" a fistfight--you each just lose to different degrees).