According to the Michigan State Police in Detroit, you're NOT supposed to treat them as a four-way stop. According to the Michigan State Police in West Michigan, you are. Who's right?
A lot of people in Michigan are unaware that driving in the left lane is illegal. It's technically only supposed to be used as a "passing lane" and Michigan State Police are about to crack down on left-lane drivers.
Beginning March 1st through April, troopers are going to be on the lookout for those straddling the left lane; on all major freeways throughout the state...