My wife and I are 50+ yr. old Vandy fans and will be driving down from Chattanooga.Our plan is to drive to someplace like Dunwoody and take MARTA to the North Avenue station.Is this a good idea? How far a walk is it from the station to the Peters Parking Deck (there's a big Vandy party there)? And finally,will it be safe to ride the MARTA from North Avenue back to Dunwoody after the game(9:30-10PM)? Your input would be appreciated.Thanks.