I would be in favor of anyone driving on tags of a vehicle without insurance being stopped and the vehicle towed.The law in Maryland requires insurance on a vehicle.
Just to add to the discussion ---
I was once pulled over - and had my car impounded - because the front plate was gone.
To my surprise - my registration had been cancelled, because I can only guess that after my front plate was stolen, someone turned it in.
The MVA in their magnificent wisdom chose never to inform me of this - so unwittingly - I drove around an unregistered vehicle.
Not only was my car taken, but I was ADDITIONALLY hit with a couple fines of driving "an uninsured vehicle" which I carefully explained
to the officer was patently untrue - in forty years, I had never lapsed on an insurance payment. NEVER. They assured me if I brought that
evidence to court, it would be taken in consideration.
I arrived in court with EVERYTHING. I had contacted my insurance agency to show the previous five years of insurance - and that I could go
back further - with no lapses.
Admittedly - I should have noticed the missing plate. I had previously lived in a state where only the back plate was used, and I don't recall
ever having attached the plate since it was the one the car had when I bought it. When I got a plate later, I was surprised to find there's no
place to attach it - it just screws right into the front bumper plastic.
The cop who said they'd probably dismiss everything? Oh no. They even argued for two additional fines the judge thought was superfluous.
Ultimately I was told pay the fine, or 30 days. The fine was for an uninsured car - I told the judge I have these documents proving it had never been
uninsured. "Those are your choices". I paid the fine and went home. Utterly blew away my previously high faith in our court system.
So - yeah. I observe all the traffic laws. That guy driving slow in the lane out front? That's me obeying the ridiculously low speed limit.