[Prudence]

Actually, it was declared unconstitutional (if that's even the right term) according to Minnesota state law, not federal, and therefore may not be applicable elsewhere.

According to the article, the sticky point was that the cameras "ticketed vehicle owners, not drivers, a procedure that ran counter to the uniformity of Minnesota laws governing moving violations." Which is a bit different from saying "red light cameras are unconstitutional." I doubt this has posted on Westlaw yet, so I didn't bother looking it up, but it sounds from the article as if the city's laws conflicted with the state's laws, in which case state law wins. Nothing particularly exciting about that.

Besides - a due process claim? Over a traffic camera? I can't imagine a compelling substantive or procedural due process claim in this situation.