But they do when you go to claim,as I had to do this at Phoenix Sky Harbour,Southwest Florida International,O'Hare & Midway airports recently due to my misjudgement.
Each time my extra bags were held back from the others after landing and I was approached by an attendant asking me to follow them to a customer checkout counter.
I had to pay them then & there or no bags for me.
They are a savy bunch.
