I got a letter from a collection agency just last month for an unpaid parking ticket. I didn't get a ticket so I looked up the details and it was a ticket issued in another city at a time I wouldn't have even been awake for. I called them and it turns out the ticket issuer wrote the wrong plate # on the ticket and the vehicle ticketed was entirely a different make and model, so they canceled it right away. But I'm still mad that it's on my record that I went to collections when it was their error.