Your salesman is referring to allocations not shipments (aka deliveries).
I don't see how your salesman would know if another dealer on the other side of the country had their Blackwing shipped or not.
However all dealers receive allocation and constraints on a weekly (Bi weekly?) basis so I wouldn't be surprised to know that nobody has received a 5V Blackwing allocation nationally in the last two weeks, these are a very production limited vehicle and I wouldn't be surprised if nobody received an allocation for the last two weeks.
Your salesman receives constraint reports, those reports aren't for deliveries, these would list the allocations, which is what I imagine your referencing here, not "shipments" +aka deliveries.