Buy another XJ and sell the briarwood if it comes to it.

 

I'd remove it. If you chose to, the key is to either wait until it is warmer or do it in a heated space. Use a heat gun and apply heat to it as you pull it off. There's a fine line between too much heat and not enough, so you kind of have to practice a little. Then if you have residue left afterwards a product like "Goo Gone" or a good Naptha thinner will get rid of the rest.