his shop is less than 1 hour from Atl. if you leave at 11pm that will put you in Atl at the height of rush hour. Rush hour here is 6:00 to 10:00am and then you get the afternoon rush at 3:30 to 6:00pm and 85 is the worst of them all.
as far as the directions I can only help you from the 85 south part.