And lo, as the prophecy foretold, California's digital license plates are totally hackable, giving away GPS location and user info:

https://jalopnik.com/researchers-hacked-californias-digital-license-plates-1849966295

Researchers Hacked California's Digital License Plates, Gaining Access to GPS Location and User Info (Update)

Just months after release, cybersecurity researchers have hacked Reviver Rplates and gained access to GPS location and sensitive user data.

Jalopnik
@evacide What is the supposed benefit to a consumer for a “digital license plate”? Crazy idea! It’s our digitize-everything and make a buck biz culture. Our only defense is “say, no, don’t be a sucker.”