If you ignore the ticket, the fine will double, collection costs and interest will be added, and they will get a judgement to garnish your wages or bank account. If that is, indeed, a photo of your wife's car with her face and the tag clearly visible -- and it was mailed to the correct address -- they can do this.
WRONG WRONG WRONG
NO THEY CAN'T.
If they serve it personally, then it's a real judgement, but since that isn't going to happen (because it's a money loser, and it's all about the money).
Until then, you are stupid to pay it. It's like a fine for stupidity.
Brian H
Longmont CO
"I am free, no matter what rules surround me. If I find them tolerable, I tolerate them; if I find them too obnoxious, I break them. I am free because I know that I alone am morally responsible for everything I do."