Driving in the rain

[BigDogatPlay]

Right, but how is it enforceable if ~70% of the population aren't abiding by that law?

If you're the one who gets caught. Enforceability has, sadly, nothing to do with compliance.

[Steyrlp10]

I see this type of behavior in Napa and Vallejo on 29. They don't seem to realize that without their headlights on, the rest of us behind them can't make out their brake lights. I don't tailgate people, but when visibility is pretty bad, I'd like to know where everyone is in his/her lane.

Same goes for heavy fog. I'll be on the right and without fail, some guy in the No. 1 lane will shoot by doing 80+. I can never understand how he can see while the rest of us have dropped down to a safer speed.

[Adehtla]

According to CVC27007 I can use a sound amplification device (ie. PA) while operating my vehicle so long as it is being used "to request assistance or warn of a hazardous situation." Do people driving without headlamps during inclimate weather count as a hazard?