If you are looking to set up a tent, but not park by it, the Gardens is open and free. Its a couple hundred yards south of the stadium, near Bud Walton Arena. Just south of Leroy Pond Drive.
There are some reserved spots in The Gardens, but they are marked.
You can set up tents at 5pm Friday.
If you don't have to tailgate, and you aren't with small children or old folks, a good option is to park in a municipal lot near Dickson St and West Ave. You can "tailgate" at the bars and restaurants there, and walk over the hill to the stadium. The max you will pay for parking all day there is $5.00. Most games if I leave and not drink the rest of the day, I get out for $3.00. This will save you $15.00 in parking, and after the game you can already be back in the bar district. This is actually a much easier walk to the stadium than from Baum Stadium.
Be warned, however. This is a hike. Its not an easy stroll. The route you want to take is to walk up Dickson towards campus. At Arkansas Ave, walk onto Old Main lawn through the old gateway and head toward Old Main. Follow sidewalks and other people walking due west and you'll come down the other side of the hill near the stadium.
Don't walk straight up Dickson, because its really steep. I guess you could, but its a *****. And you will have to criss cross your way to the stadium. Find Old Main (twin towers, historic building) and the stadium sits behind it about 200 yards.
[This message has been edited by wmr (edited 9/10/2013 1:58a).]
[This message has been edited by wmr (edited 9/10/2013 1:59a).]
[This message has been edited by wmr (edited 9/10/2013 2:00a).]