Ok, I can't seem to bring the old thread up, but I thought I'd give you the sequel.
Some weeks ago, two men came to my door at 10:00 on a Monday night, claimed to be police officers and accused me of breaking a window at the local Arby's with a cane.
I hadn't broken the window. I hadn't been near the Arby's in several weeks. But I had been seen limping by an Arby's employee, who followed me home, and took down my address. She also sent the alleged "cops" to my door.

Ok, Election Day, I'm handing out literature outside the polls, when I saw one of the "cops". He was in uniform, though not a police uniform. He's a firefighter. I found him on the local volunteer fire department's web page, got his name, found his facebook page and the name of the Arby's employee who probably put him up to it.

I wrote to the fire chief, explaining what the guy had done, and asking him to explain that it's illegal and really dumb to impersonate a police officer. I then explained that if he came to my house again, for any reason other than to put out a fire, I would call the real police and speak with my sister the lawyer.

By the way, we don't have a whole lot of privacy in this internet age.