...
I think it would be a lot cooler, and definitely possible based upon the high-tech nature of the plant, to allow us to know the exact time when our vehicle enters production. You could even have a count down figure until it enters the plant. That figure will be available in their production planning system.
Then have pics/cams of your car under production as it goes through each step in the process. I bet most owners would love (and pay for) a collection of snaps of their 'baby' being born. (Stamped, sprayed, roof added, interior put in, etc, etc).
It would keep the punters super-excited, solve a massive communications issue and even generate revenue. It also would be SUPER-COOL. Elon? It's not rocket science!