I must have been fuzzy with tired last night when I made my previous post, How was I to know?, because it appears I palmed a card without even noticing I did so. That is to say, yes, Paul wasn't referring to the prevailing civil law of his time but to the Law = Torah and laws = mitzvot (the 613 commandments found in the Torah).
Still, I can't help but wonder if this teaching regarding one set of laws doesn't encourage a disrespect for all laws. Kind of, "Hey, I have faith—I don't need no stinkin' laws…." It would certainly explain the attitudes and behaviors of any number of people.