But the status of being licensed to drive is kept in one or several databases controlled by one or many states or agencies. Similarly, the status of having a credit card is kept in a database controlled by at least one credit card company. Licenses and payment accounts can be verified for everyday use with less than 100bits even without a physical or digital representation of the card face available.
If Apple can stop a device from transmitting or displaying license details, then I guess you'll... need either a physical copy or the license number.