It is well established that the US government conducts mass surveillance on its population. I don’t know what government surveillance is like where you’re from. I actually prefer a world where humans enforce laws rather than automated systems (in general). While officers aren’t perfect, they can use their own discretion to enforce laws and that sounds better to me than living in a world with cameras watching us and instantly fining us for infractions. I personally don’t obscure my own license plate, but I believe someone who does, can do so for privacy purposes without lacking integrity or honesty.
I personally want to live in a country where 40,000+ people don't die from traffic violence every year.
I also think the subjective enforcement of laws by uniformed officers has a terrible record in this country. It strains credulity that anyone would trust a police officer more than a speed camera. I personally think it says something about their actual concerns with oppressive government.
Despite your apparent belief the government is already doing mass surveillance that impacts you, you specifically have a problem with traffic enforcement. Presumably you own a registered vehicle with a serial number and have a drivers license. Forgive me for being skeptical of "concerns about privacy" that specifically entail traffic enforcement but aren't strong enough to forgo vehicle ownership.
I don't think anyone's personal paranoia about traffic enforcement or their personal consumer preference to use a private automobile should take priority over reducing the thousands of deaths and injuries on our roads.
