Today I received a piece of mail that looked like it came from Sacramento County. Once I opened it, I found that it was an advertisement from a mortgage company. It was one of those, like a check, where you tear off the three edges and unfold. In the return address spot was typed, "County of Sacramento" ...I'm a little annoyed by this and left wondering how legal it is and whether or not the county can do anything about it. I realize that it's part of home ownership that all the rats come out at the smell of money, so it's to be expected, but I think this is especially low and unethical.
Here's what I'm talking about:

Note that they even cite a US code for obstruction of mail...