Cuse fan here who does tailgates
Wake Forest is one of the easiest spots to tailgate. They have cash lots literally across the street from the stadium. One of my favorite games to set up a tailgate. Not a lot to do in Winston-Salem but maybe a side trip to Asheville? Get a non stop into CLT or RDU...rent a car. Only a 2 hour drive from either location. If you don't mind a connection the closest airport is Greensboro Triad.
FSU is actually very easy for a easy tailgate location if you don't mind a walk. The basketball arena (Tucker Civic Center) is a little less than a mile but the walk is very easy. Cash lot with a grocery store two blocks away.
https://www.tuckerciviccenter.com/directions-parking Getting to FSU is another story. I suggest flying a nonstop to Orlando or Tampa and spending a few days there and driving to the game. Spend 1 night in Tally or closeby in a town 45-75 mins towards your airport city.
SMU never been there. They do have a robust tailgate scene. Probably easiest to walk into the tailgate village with a 12 pack of beer or some wine and join in with some well heeled SMU fans. There is parking available it appears north of the stadium.
My advice is to ask the fans over here:
http://www.ponyfans.com/phpBB3/viewforum.php?f=1