We just came back from one week in Los Cabos - when we got to SJD, we pressed the botton and the GREEN light came up. So all three of us (myself, wife, son) started to walk - this is when a lady stopped my wife and asked to check her bags. I politely told her we got the green light - she absolutely didn't care. It almost looked like she was looking for something that she can take. No matter what I said to her, she completely ignored me. It was frustrating.
Coming back to LAX was a very pleasant experience - fast, friendly immigration officer. I was glad to be back home.