These lens "blockers" are working less-and-less well (as tech gets better if they ever worked well at all), and seem to increase targeting from law enforcement.

In Tennessee, after the first two citations for "improper display of registration" it becomes an actual crime (an actual misdemeanor); if I ever get to this point (four months now multiple cops behind me haven't given a single F), I have an increasingly-insane series of "protests" that have semi-interesting legalities [0].

[0] e.g. transfer registration to brother ($10 gift fee every few months, which results in no tag requirement); small 3ft trailer (possibly with guillotine erected atop, blocking view), as TN does not issue license plates to trailers less than 15ft length

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This isn't about "disappearing" (impossible in any modern civilization) — it's about sending a message and adding one small additional layer of protection from simple broad ALPR searches.