It’s public information. You don’t have an expectation of privacy about your license plate. The exact opposite is true: you’re legally required to display it prominently whenever your vehicle is on the public highway.
What’s your point? All sorts of public information is not shared en masse with law enforcement. I’m not trying to argue that this is somehow illegal. This company isn’t committing a crime, they’re just assholes.
ICE goes after human traffickers too.