This new law will have no effect in Eugene for two reasons:
1) EPD rarely enforces traffic laws anymore. Maybe they just don't have the personnel to do it, but whatever the reason, they just don't.
2) When EPD does enforce traffic law(s), they only enforce one traffic law. We all know which law that is. Just look at the statistics EPD themselves publishes after each one of the large-scale temporary traffic enforcement operations they've done. In one, they watched traffic on Beltline all day long and didn't manage to see even ONE PERSON make an incorrect lane change. 

When traffic enforcement is anemic and always consists entirely of pointing a radar gun, there's no reason at all to expect that they'll suddenly start pulling over distracted drivers.