We missed the gates-closed time from a game reserve in SA due to this exact issue. A cranky elephant blocking the track out, we were less than 500m from the exit. Instead of playing err elephant (aka chicken) I reversed back about 2km and then drove another 20km and exited via another part of the park. They tried to charge us a $150 late departure fee, but I refused as it was the elephants fault, I told them to bill the elephant!
