By what provision was that unconstitional?
One cannot go to jail, pursuant to sentence, for a seat-belt violation in nearly jurisdiction; what then can be the possible State interest in allowing a tyranical punk with a badge (and I am NOT referring to all or most cops, but absolutely the shoe fits this one) physically arrest under the circumstances?
It clearly violates one's Constitutional right against an illegal arrest, and arguably constitutes cruel and unusual punishment to handcuff, strip-search, and incarcerate for eight to ten hours (longer if a OR bond is not given) a person for driving without a seat-belt.
I am not bashing conservatives by pointing all of this out; I am bashing conservatives who behave like liberals. And, in this case, the Supreme Court acted like Hillary Clinton would have, a nasty nanny with an iron fist.