I live in Wa State and I never get hassled. But, I don't live on your side of the state anymore, where it rains almost every freakin day.
I think Johnny is looking for the spray of water coming off your tires. Mine usually stays in the garage when it's raining.
The law for heavy trucks is that you must have mud flaps cover your tires equal to, or lower than the center of the axle. I think it's the same for domestic vehicles too. But, if you look at all the new pickups on new car lots, most of them do not comply with the law. Go figure.
~Pacific Northwest 4WD Association~
2004 TJ X, 4.25" combo lift, D30 Eaton e-locker, D44 ARB, 4.88's, 35's,
10 Factory, Currie, TW, MCE, JCR, UCF, Savvy, etc.