Received a response this afternoon from my IDA. "Your final MVPA should reflect the new pricing. If it does not, you will be refunded the price difference."
Received a response this morning from the Customer Experience Specialist at the local Tesla showroom. "I believe all orders that have not been delivered will be adjusted down to the price displayed on the website".
I have it in writing, I am moving forward with my delivery on 11/1. It can't come soon enough...
And this morning my order reflects the reduced price, however the MVPA has not been updated.