I don't wish to throw a damper on this but I know of NO incentives from Nissan that would approach this "deal" being offered and certainly not on the 370Z.
I would be very, very, cautions with this and if anything is agreed to make absolutely sure it is in writing and signed by the GM of the dealership.
And no, to lay such thoughts aside, in today's world, "special" vehicles don't get shipped to dealers by accident...I won't say it absolutely cannot happen ever but it's so unlikely that it's hardly worth a nanosecond of consideration...vehicles that cannot be legally sold to the public are very much kept track of!