In the Denver area and same scenario as above, got a VIN and June 21st date but date disappeared with the May MAP shut down news. Dealer said Juiy 12th but didn't sound confident.
I asked my dealer about this and they said no, difference being the Broncos are more mass produced at greater numbers. Not as custom as the Corvette so not much to see. Plus right now I bet it would be difficult to lock down the date and time to show up.