I purchased a new 2011 QX 56 a couple of months ago and the window sticker indicated that the port installed stainless steel rear bumper protector accessory was ordered, included in the delivered price, but on backorder. The dealer indicated today that it is still on backorder and Infiniti is not indicating an expected available date, which according to the dealer is unusual. Has anyone had this same experience or know anything about why it is not available - is Infiniti discontinuing this accessory or trying to find another supplier ?