Since Fiat Chrysler/Dodge got bought, yet again, by Stelantis, I doubt the new owner group feels any need to live with promises made before their ownership.
One way for Dodge to benefit from the dealer raping, is to claim 50% of the over MSRP paid and have it proven by the sales document provided to the state(s) for sales tax and license. And tax, wow, are the states a winner there too, but I guess the people willing to pay $400,000 over MSRP aren't too concerned with an additional ~$30,000 in tax...