Do you have any idea how many people get auto insurance just to get an insurance card? In this state, plenty.
That means they make the minimum payment, get the card, and then don't bother paying the rest of the premiums. That way, if a cop stops them and asks for the big three (license, insurance and registration, please), they are covered even if the insurance lapsed.
Now, perhaps that's the case here? If he was a long-standing customer of progressive, maybe they would have granted him a little leeway, but I don't think either of us can make any assumptions here. And, being an "Internet only" company makes it even more difficult to know a guy's intention.