Dealer claiming "don't worry about the other numbers, just tell me monthly and DAS you want" - shady?

Well, sometimes the dealers give you this kind of message even though our offer is reasonable. “if you are able to get a signature model CX-5 for several hundred less per month than what I quoted you, I would drive to the dealership immediately and purchase. Please let us know who it is as well so that we may purchase from them too.”