This is awesome. Question though: how is producing license plate data like this not a disallowed privacy invasion? It seems like you could totally track who's parking where and potentially do nasty stuff, if you know (say) someone well-off whom you don't like and who doesn't seem to mind getting tickets on a regular basis.
I thought so to until recently and was honestly kind of surprised they actually gave it to me. They rejected giving license plate info at first, but they've given it out in other, similar, FOIA requests.
Specifically in FOIA's statute, it says:
(c-5) "Private information" means unique identifiers, including a person's social security number, driver's license number, employee identification number, biometric identifiers, personal financial information, passwords or other access codes, medical records, home or personal telephone numbers, and personal email addresses. Private information also includes home address and personal license plates, *except as otherwise provided by law or when compiled without possibility of attribution to any person.*
In other words - if the dataset itself doesn't have identifying information, then it's not considered private. That said, I've played around with re-identification using this dataset as a POC.. and then deleted the code, because yeah - it's scary.