Once we were in that area in the month of June, Patriata to be exact, height of summer, the situation was none better, we just don't like to stand in a que or form a single lane......spend all day there but when it's time to leave, everyone wants to get in the front....thus morons driving in the opposite lanes and thus blocking the traffic going the other way. In the end, everything grinded to halt, no one could move either way.
Eventually some military police arrived and things started to move after being stranded for over an hour.