I got one from a toll road in Northern California where I had never driven that car. They sent me a picture with the ticket and it wasn’t the same make or model of vehicle (you could see the manufacturer logo above the plate). It turns out the violator had a plastic license plate frame with the dealer’s name on it that most cars have but it kinda covered up the bottom part of an “E” and it looked like an “F” which came back to me. I called them, they realized it was a different model of vehicle, ran the plate using an “E” and that matched the brand of the vehicle in the picture and was registered in No Cal. near that toll road and that person had an account with them (or at least that is what they told me). The person was nice, but then again, I was too, sometimes that is needed when dealing with someone who gets complaints all day. They dropped the ticket, haven’t heard anything since and that was more than a year ago and I’ve registered my car since then so I know it went away because if you don’t pay they tack it onto your registration. Check into that angle, because some plates are hard to read/obstructed and I imagine some people do it on purpose.