A while back I got stopped by two local police as I was cycling home from work on I-70. There was an alternative, but it was 2 AM, I was tired, and I wanted to get home and get to sleep as soon as I could.
I tried to explain to them that what I was doing was legal, they wouldn't listen, so I got their names and got off the Interstate and took the long way home. Next morning I called the Silverthorne police department, described the episode, and asked them to please double check the law. I got a call back from the Silverthorne police a few hours later saying I was right, the cops were wrong, and I never got bothered again when I used I-70 to get home.