Won't work on interstates but if they are crossing solid white lines like bicycle lanes on modern roads they they are either drunk, high, or starring at their s

Won't work on interstates but if they are crossing solid white lines like bicycle lanes on modern roads they they are either drunk, high, or starring at their smartphone. Some people seem to even purposely straddle the bicycle lane line as some kind of subconscious auto-guidance while using their smartphone while driving which should be a go-immediately-to-jail offense before they murder someone.