When I'm using BlueCruise, I can't look at a sign beside the road without beeping warning me to keep my eyes on the road. There are few roads where BlueCruise even remains active for long without reverting to "hands-free" mode, so that if my hands aren't positioned properly on the wheel, or if my hands even rest too passively on the wheel during turns, there's an alarm.

I honestly don't know how people lose track of the road using BlueCruise. Wearing glasses with eyes painted on them, with rubber hands hooked onto the wheel?