Arkansas is the absolute worst. And that half mile to mile walk you have usually involves trekking half way up a mountain one way. Hell, I'm pretty sure when we went to Notre Dame we were a solid mile away from the stadium in some grass pasture we paid $20 to park in. Only good thing is those lots actually had merch vending tents in them.
I can tell you all now, if you get to TU at about 11am on Saturday, go and park behind Collins College of Business. There's a small lot out back along 5th St. and TU won't ticket on game days. There's a shuttle stop right there (across from UUMC). Also, secret of the pros...if you can find space in any of the apartment lots on the north side along Delaware, they won't ticket for not having a lot pass. TU's campus security is so stretched thin on game days, they don't have the time to deal with those. Also, back in Kendall Whittier Elementary school lot. There are so many close places to park and you're still only a 5-10 minute walk from the stadium or the tail gate area.