None of these will be put on that person owning the vehicle as criminal negligence, and it shouldn't- exactly what the article says.
What happens as a result of those mentioned above is a whole another issue; but I can imagine it being very "unfun" proving being innocent while accused of being guilty.
Words that can describe the meaning of this word: 1. boring 2. bland 3. uneventful 4. uninteresting
Sentences applicable to this word: 1. That activity is so uninteresting and boring to me, it's unfun. 2. Talk about unfun, that's so groan-inducing I can't stand it!
Essentially, it's a made up word, designed to add more spice to language so that there are more choices when trying to form a new sentence.
I enjoy playing Grammar Nazi with lots of folks when they use the "un" prefix, as it usually (but not always) means to reverse an action already taken:
Waitress: "Would you like your tea sweetened or unsweetened?" Grammar Nazi: "It seems amazingly complicated to sweeten the tea and then unsweeten it again. How about you just bring me non-sweetened instead?"