They aren't just tracking license plates though. They're tracking people - let me explain. Their 'ALPR' cameras (purposefully misleading to call them ALPR btw) capture the footage and send it off to their servers where it's retained - building a long-term historical location history on every vehicle. Advanced analysis is performed on the data to provide features to their customers such as the ability to search for vehicles based on a description of its characteristics (no plate needed), real-time route prediction, location heatmaps, and identifying vehicles that travel together (convoy search). Here's the important part - data is also ingested into another service they run called 'Nova', which is essentially a people search tool that connects the vehicles they capture directly to people and their PII. Access to their platforms (Flock OS, Nova, etc.) is sold via a subscription to law enforcement where they can perform searches for individuals or vehicle whereabouts for any reason, without a warrant, and practically no oversight or regulations.