Usually when we see such a rapid change in EDD like yours, you will need to carefully perform a thorough inspection when you go in for pickup. Tesla's usually don't sit around on the lot unless it was rejected or return by the previous purchaser. Check the mileage! Just a recommendation but if it was me, I would certainly check for any glaring issues before you accept the vehicle as you would do with any pickup but especially this one.
Take your time during the inspection and ask as many questions that you can think of and even take with you a checkoff list that others have posted online for your use.
This is a wonderful time and experience so make sure it is an enduring one