^Yep, I was honestly surprised w my experience at the dealer that did end up honoring it. We sat down to talk #s, he's like ok MSRP is blah blah and then I just came out with it "I have X plan, if you can get me plan pricing, let's get it rolling." He said awesome without blinking an eye and we signed that night. Quickest/easiest car purchase ever and I was so thankful to end the search and associated haggling.
The way dealers are acting, even on '18s in November, is odd to me especially as their floor plan rates have gone up too. But, they must know what their doing by holding on to minimal discounts of MSRP.