My delivery was Monday, Tuesday, Wednesday, Saturday at 9:30 then 'we will text you later when ready' text at 7:30 Saturday morning. Never heard back but I checked the app and saw my new early afternoon appointment so went it half an hour early. Stood in line and then had to wait in lobby for 45 min until someone was ready. Then they had to do a software update they said (assume NTHSA mandated) and all this took about 4 hours from getting there to leaving. Actual delivery process was less than 5 minutes. Had you the keys and any questions? Was fine as I knew what I'm getting and could figure the rest out but not sure what it's like for first time Tesla owners.
Their communication is really bad. I'd send a question via the app or when they'd text me (normal text) and it would go unanswered for days sometimes. They really need to hire more people for this part of the process. I think the texts were coming from someone on east coast and not at the delivery center so you'd think someone actually doing the delivery would be in charge of communication at least day of delivery.