You sir are correct and I was wrong. Yes, it happens.
All reports indicate slightly over 14,000 R6P cars. The VIN has nothing to do with it as some R6P cars waited months for their dealers to get actual allocation to order the car. For those who are unfamiliar with the process, just because your dealer places an order for a car doesn't mean it goes into the production schedule. Based on a few different factors, each month Chevy tells a dealer how many of his orders will be "pulled" for production (gives allocation to the dealer). There are instances where an R6P order wasn't actually built until over 6 months after the initial order.