Anyone creating a large database of license plates coupled with location and timestamp needs to be extremely careful. That kind of data at scale can be used for

Anyone creating a large database of license plates coupled with location and timestamp needs to be extremely careful. That kind of data at scale can be used for all kinds of privacy abuses and needs to have rigorous checks and balances. Using just that data you can often determine occupation, religion (what church/synagogue/etc. do you park at), potential medical issues (do you regularly drive to a specialist?), Do you have a drug or alcohol problem (Drive as well as a whole host of other PII, including networs off associates. Police make broad, sweeping requests with subpoenas. (And there are plenty of other abuses that come outside of law enforcement and the state) How equipped are you to deal with the practical and ethical ramifications of you succeed?