Damn that fine print in the order agreement....
"Order Process; Cancellationon; Changes. After you submit your completed order, we will begin the process of preparing and coordinating your Vehicle delivery. At this point, you agree that any paid Order Fee, Order Deposit and Transportation fee have been earned. If you cancel your order or breach this Agreement and we cancel your order, you agree that we may retain as liquidated damages the Order Fee, Order Deposit and Transportation Fee, to the extent not otherwise prohibited by law. You acknowledge that the Order Fee, Order Deposit and Transportation Fee are a fair and reasonable estimate of the actual damages we have incurred or may incur in transporting, remarketing, and reselling the Vehicle, costs which are otherwise impracticable or extremely difficult to determine. If you make changes to your order, you may be subject to potential price increases for any pricing adjustments made since your original Order Date. Any changes made by you to your Vehicle Configuration, including changes to the delivery location or es6mated delivery date, will be reflected in a subsequent Vehicle Configuration that will form part of this Agreement. The Order Fee, Order Deposit, Transportation Fee and this Agreement are not made or entered into in anticipation of or pending any conditional sale contract."
"The estimated delivery date of your Vehicle, if provided, is only an estimate as we do not guarantee when your Vehicle will actually be delivered. Your actual delivery date is dependent on many factors, including your Vehicle’s configuration and manufacturing availability. "
IANAL, but my understanding is once you hit order, you entered into a contract. If you decline to take delivery of the vehicle, you've basically terminated the agreement, and are subject to the terms and conditions of the contract you entered into. The fact that Tesla is willing to allow the pause button is one thing, and somewhat generous of them, since technically they don't need to allow a pause and still honor any of the terms and conditions of the original purchase. But if you've gotten a VIN and refused delivery, it shouldn't be a surprise IMO if they terminate the contract on their side and keep the $250 (really they could collect the $1200 transportation and doc fee too).