Yes if the inventory exists they will ship it to your dealership. Went in the dealership to test drive on Feb 16th and ordered it after test drive. Was in a time crunch so asked for available inventory and they were able to find something out of state. Got confirmation of a match the same day and picked up the car on the 27th A week after ordering it, I told a friend about the model I had bought, he checked the tesla site he told me that car is no longer available.
just a quick update, just received a call from a sales advisor that left me a message. She said that deliveries (at least here in SoCal) are all usually scheduled a the end of the month of each quarter so which means that delivery for my SR will probably be around end of March, maybe a few says sooner. She said that they get their cars for delivery in bunches and the way SoCal dealers work, they all get it at the same time. Weird but at least she had some info for us that are waiting.
I got a VIN today but it disappeared after 1 hour. VIN number was 109,xxx. Looks like it was something from existing inventory. Not sure if I'll get it back but it's a good sign!