Originally Posted by
WoodlandCreature
A null zone number is accounted for in the procedure, as is often announced: "If there is no zone number printed on your boarding pass, please board with [or, sometimes after] zone 5."
That defeats the entire purpose. I am usually in Zone 2. If I ask the gate agent they say just board in Zone 2. Until they can consistently and systematically assign zones to all their customers using their priority rules, why would anyone take the gate agents or this system seriously.