I don't get harrassed all that much... I will admit... it has probably been 3 months or so since my last "get on the sidewalk." I typically cycle every other day. About 30% of my riding is on isolated bike paths.
But then again, it is probably been 2 years or more since anyone honked a horn at me in my car. I drive about 5 days a week.
In other words, I am far far more exposed to traffic while driving a car, and I experience far far less harassement... even though I drive "painfully slow." (by "some" standards... I drive at or below the speed limit).