i drove home sunday too! It was hott!! Especially with the black dart.. I got off 70 tho just before the construction and drove 40 home. There was an ungodly vibration the whole way home. I suspect slip yoke.
Someone else in our group (there were 5 vehicles in all.. the 3 of us in the muscle cars, and 2 in new rides, one being a mini-van we dubbed 'the chase vehicle') that suggested 40... but we have always gone 70, and we werent sure exactly where 40 would lead.. LOL .. next year I am gonna take the time to map out alternate routes in case of construction.. also I may take the family car out on 70 about a week before the Nats and scope out the situation lol....