Yes I would either fight or find a new dealer. It's really not that hard to find a Jeep dealer that's mod-friendly. We deal with the same thing with Harleys. Find a good dealer. Stick with them.Sure, but we all know dealers can pull all kinds of shit tactics against you, and are you really going to fight with them to teeth or hire lawyers?
There are nice dealers, but there are more shitty dealers as far as I know. For example, in my area most Jeeper I know avoid the 5-6 dealers we have here like plague. I have a buddy brought in his Jeep because of rattle in the dash, and dealer refused to look at it and said it was because of his 37s tire shake something behind the trim.