I highly recommend that you keep your delivery appointment in the morning and plan to spend the whole day there. That way you can have them fix issues immediately(and still take delivery the same day) rather than creating a service appointment that would take weeks and their main tool at that point will be a ruler(or a caliper) which they use to measure to find out if things are "within spec" rather than fixing them.
For me, I created a ticket in the 'Other' category within the 72hrs and it was automatically assigned Mobile Service. Nothing happened for a couple of days and then someone reviewed it and made it a service center appointment 1 week out. I took the car expecting them to fix the issues so I had my wife come along for my ride back since they don't guarantee loaners. It turned out that that particular visit was only for an inspection to confirm the issues I raised but I was not told that in any way. If it was just an inspection, it could have been done a lot earlier. During the 10minute inspection, he took photos of the issues and said will order parts and will schedule an appointment to come and fix. The appointment was given for a date after two weeks with no promise of a loaner. Took the car last week and they wanted to keep it for a day to fix those issues(the ones not within spec) and issued uber credits. Note that there is no way to talk to the service advisor unless you go to the service center. They are taking contactless very seriously
.
So even if your car has some panel gaps that are not matching with the other side, they won't fix it if it is within spec. You cannot also cite another Model Y without that issue either as they go by these unpublished specs only. After inspecting the car more closely(easy as this one is parked in the garage) I have found a lot of mismatches and gaps which I don't think will be fixed in any Model Y(even the one they would give to Elon
) as 1. these parts/components are not designed to fit that well together 2. it is not their priority and they don't care
My 0.02