According to the article Anthony posted up, I-75 South being closed is one of the main issues.
A significant amount of truck traffic is using Southbound Fort Street. for that reason they don't want to re-program the traffic lights and close off some of the turn-arounds as they have in the past.
Also the old K-mart is under construction, so the lot is closed. Meijer across the street also has construction in the parking lot.
Blah-blah-blah. People are gong to show up and do what they do. If that includes act stupid, be ready for personal interaction with law enforcement.