I did not. I specifically paid for a car with FSD, which is why I made sure to put it on my original order, not tacked on after delivery. I also paid for 20" wheels and 7 seats in my original order, and got them. If they were backordered, that's fine. But if they fail to eventually deliver in reasonable time, or rather, deliver to others that bought after me, and not to me, then I'd use legal action to enforce the order, take back the car, or pay damages.
This isn't difficult.
You're absolutely correct, it's not difficult. Where you're running into trouble is what a court will rule on. Courts work on reason - what is reasonable. Your car is working fine, and has value which you've received. The court will not order Tesla to buy back a car that is working reasonably well. It's why we have Lemon Laws in many states in the US, which can force a company to buy back a car that isn't working reasonably well.
Here's an example:
Car - $100,000
Tires Upgrade (optional) - $2,000
Seats (7-row optional) - $5,000
FSD Package (optional) - $15,000
If the tires weren't delivered, nor the seats, you would know this at delivery and could refuse the delivery, or have a signed document indicating, as you said, there was some parts shortage and you'll get those items at some point in the future. If they never show up, a court would very likely grant you a refund of $7,000 for the tires and seats, plus possible interest on the time.
The same for FSD. If you argue to a court that FSD was not delivered timely, the court would likely grant you a refund of $15,000 for the FSD Package, plus possible interest on the time.
If you could prove to the court that the only reason you purchased a Tesla was for autonomous driving, and that might be difficult to prove, the court would likely grant you a refund on the FSD Package, and possibly the difference between the price of the car ($100,000) and the FMV (fair market value) at the time of the case (let's say KBB shows your car worth $80,000 at the time of court), meaning you'd be granted an additional $20,000. You could then sell your car to be made whole.
Think reasonable.