Driver on I-91 reported falling asleep at wheel

Westminster, be on the lookout (BOL) on I-91 northbound, passing mile marker 42, for a male driving a small gray sedan.

Seems to be falling asleep at the wheel.

Caller states he's continuously going back and forth over the rumble strip.

Again, I-91 northbound, mile marker 42, a male in a small gray sedan seems to be falling asleep at the wheel.