When I ran loose leaf, I slept when I was sleepy. And drove when I was awake. It doesn't get much safer than that. Trying to drive by someone elses clock never worked out for me. I was always driving sleepy.
I never paid them much attention until the called complaining because I went a few hours over my 11. Even though it was to get over a mountain pass before the snow storm. And it was always the same thing, "You should've shut down at 11hrs." Blah blah blah blah.. I'm like "No, you should've turned off what ever it was that was tracking me, so I could do my job the safe way."