Ok, the DL barcode makes sense. Not too comfortable about the DMV knowing about my vax situation...
Now I remember. The smartphones were also to be used to identify if anyone nearby was virus positive.
The DMV won’t know it’s just the unique data on that barcode thats tied to the county health department in a one to one database link. I could probably write the code needed in an afternoon in C# or python running on a MSSQL server those barcodes make life easy since they contain data that’s not only unique to the ID but biologically unique to the person holding the ID that’s nearly impossible for two people even identical twins to share the same biometrics especially finger prints, facial recognition of twins can be close but never prints.