I don't think an "education" from lowly members of the public will be persuasive, compared with the power of persuasion asserted by the chain of command and some amount of built in "us vs them" mentality. I think engaging and education is good, sometimes it will work, but by and large it is an exercise in futility.
And not to say it is "just the cops." The courts reinforce the decisions cops make. IIRC, a federal court has ruled that bans on magazines that can hold more than 10 rounds are constitutional, and (this blew my mind) legal scholar Eugene Volokh finds such a ban is constitutional. So what? Well, Volokh is held to be a pro-RKBA legal scholar by courts, and his work is often cited in legal briefs.
Just saying, the police are in the business of enforcing bad law, just as they are in the business of enforcing good law. The courts are a total crap shoot, why should the cops pick and choose what to enforce? Plus, cops performance is measured, in part, by the number of pinches they make.
We the public, didn't demand it. That is our error.
I am not in favor of painting all of law enforcement as evil, as some people, in their thoughtless unreasonable posts indicate. I'm not going to call it "education by the lowly public". I don't see it that way.
There's a lot of work to do, and Mr Cinque showed us a great, practical model in which to do so. But let's at least acknowledge that is was reactionary (Cinque reacted to bad legislation, and comments by police). We need to equally be proactive, and not wait for this to happen. We should get police chiefs and local elected officials on record; then go from there. As I mentioned, Keith Broaders is doing a heck of a job raising an army of people to keep the sheriffs in check. We need to do the same when we vet candidates.