You probably won't know until you get in the area and try it out. Aside from Public Safety (which you should have some to start out) I imagine there will be a lot of chatting in the FRS/GMRS band. It's kind of funny we had a couple of Navy SH-60 Seahawks ie Navalised Blackhawks come in to work this evening and while they are in town a couple of crew members are going to Bonneroo.
Alot of traffic and people in the area. I am in the Manchester area visiting friends and relatives. Trying to avoid the mass confusion caused by Bonooroo. The law enforcement officers are doing a great job.! The Manchester Police, Coffee Co So and THP have learned alot since Bonooroo first started a few years ago.