FWIW, I've read that the traffic laws in Germany are much stricter, e.g. it's actually illegal to "cruise" in the left lane or pass on the right on the autobahn, and you get hit with a very hefty fine for doing so. Maybe if this stuff were against the law in the U.S. fewer people would do it.
http://en.wikipedia.org/wiki/Autobah...nd_enforcement