Maybe not. All dealers have few, if any, cars to sell. With your stated model, there may not be any allocation at all - so anything coming in has been sold some time ago. Further, the dealers might be precluded by contract from selling above MSRP. I have heard stories (true?) of dealers selling to each other at MSRP then selling the technically pre-owned cars at massive overages. If that is true, dealers might not actually want to sell to you.
That said, they should respond as a courtesy if nothing else. We have all encountered dealers who are less than courteous.
If you are serious about getting a car in this market, you should expand your request to at least 500 miles from your home.
I had to buy a car for my kid (a Subaru Impreza) this quarter. I found exactly 3 potential vehicles between DC and Boston. I am in CT, we bought in Delaware. The other options were in Pennsylvania.
All were substantially over MSRP, but the Delaware dealer was not too insulting. A week later, a NY dealer had a car, (preowned) for which they were asking about 40% over the MSRP was when new. There was only one dealer (Garavel in Norwalk, CT) who stated they would sell a new car at MSRP and not above. But all of their incoming cars were sold out for the next 4 months (that was February).
I can only imagine what the Porsche dealerships are doing. Even before COVID and Ukraine and the ship sinking, Porsches were in short supply. Now....