According to the papers, the Eastern blackout did hit Ann Arbor, MI. From a New York Times article:

In Ann Arbor, the big problem was how to handle rush-hour traffic without traffic lights.

"The lights went out at about 4:15," Chief Oates said. "The traffic was absolutely chaotic immediately." Traffic was controlled at the half-dozen main intersections. "We got everybody out of town in about two and a half hours," he said, "and it's been great ever since."

And from an article in the Detroit News:

Humor was powerful medicine in the birthing center at the University of Michigan Hospital in Ann Arbor, where five babies were born during the first 24 hours of the outage.

The situation created discomfort and inconvenience but was not life-threatening. A diesel-powered generator fired up immediately when the power failed Thursday afternoon, part of the extraordinary shutdown that extended from Michigan to New England.