I have my pdf of my order preview clearing showing no ADM, maybe the OP has that as well.It could have been. Dealers usually enter that information when they first setup their system for online orders. Unless of course the OP has a screenshot of their order that clearly shows no ADM.
I just did a dummy order with my current dealer and there seems to be a 750 dollar ADM now, so looks like dealers are updating their ordering process.
I will be making sure to have my screen shot and my order pdf with me when I go finalize my sale after it is delivered.