The first few paragraphs are confusing. Are the attendees unable to drive out through the mud, or are they forbidden to try by local authorities? Or some of both, forbidden to try because they might get stuck even worse?
"Please do NOT drive at this time. Road conditions differ based on the neighborhood. We will update you on the driving ban after this weather front has left the area.
It will hamper Exodus if we have cars stuck on roads in our camping areas, or on the Gate Road out of the city. PLEASE don’t be that person. The roads will dry. The issue is NO LONGER ruining the roads (that is the concern before we start the event), but once we are in Exodus we need the roads to be clear, and not to have vehicles blocking traffic flow."
(If you brought them along on a spare set of rims and swapped them when it became clear what weather was coming)
Usually paddle tires (the ones with scoops) are used in sand, not mud.