i ride everyday here in the east bay for about 2-3 hours for the last 6-7 years. haven't had ANY hostile drivers. i've been lightly hit, by a couple that weren't watching where they were going or talking on the phone or whatnot, but none i would call hostile. not to say that a few weren't disappointed in me though,

and would have liked to holler out, "Get off my lawn", "Get on the sidewalk" and "Get a haircut", or some such thing, or all three, as i occasionally blunder.
as ye sow so shall ye reap...