Once, in St. Paul, I was biking on a road as close to the curb as I could, so cars could pass me. A car stopped to yell "I HOPE YOU DIE" because it was slightly inconvenient to pass me (it was a one-lane road).
Unfortunately, I had nowhere else to be; there was no shoulder, no bike lane, and biking on the sidewalk is illegal there.
Anyway, what I'm saying is, biking in the US kind of sucks.