Yeah, what helped me is that on those nights I elected to avoid the highway and only take city roads, so lots of traffic, red lights, stop lights, etc. that allowed me to drive slowly. The downside is that sitting at stop lights made me sleepier, hence the alarms.

Avoiding highways was what saved me I think; a mistake at 20mph is far less expensive than a mistake at 80mph. But certainly you're right; the obvious answer is to avoid driving or as another commenter said, carpool!