In Minnesota (and maybe a couple other states) DUI offenders are given a special license plate for their car. They're easily identifiable by their plain white background and the fact that every one of these plates starts with the letter 'W', which gives them the name "whiskey plates".
Police officers in Minnesota used to be able to pull over any whiskey plate car without needing any reason to do so, which was eventually found to be unconstitutional by the state supreme court.
That's interesting. Only the most egregious offences, and it only lasts 1 year (presumably that's 1 year after your driving ban expires - not concurrently).
However it looks like to me (and this is hilarious if I've interpreted it correctly), if you're in a rental and get a DUI, the rental firm gets the plates?
Police officers in Minnesota used to be able to pull over any whiskey plate car without needing any reason to do so, which was eventually found to be unconstitutional by the state supreme court.
http://www.careydwidefense.com/MN-Whiskey-Plates.html