When we go to Disney this June--I will have to look at the Gate more closely when we are at the Park. I am pretty sure it is a replica of the gate you are showing here. I am the same with keeping tabs on everyone's carry-on. I usually will do a count total before we leave and periodically check through the trip to make sure everything is accounted for. I always make sure when leaving a seat to turn and look back to make sure that I/we haven't left anything.
I would say it is a replica of this one.....don't they have replicas of a lot of famous landmarks in different cities around the world? I look forward to seeing any photos you do take though!
I usually check whenever we leave an area when we have our girls with us.....just didn't think to with hubby, but I've now learnt! We were so very very lucky! You know, after this happened, I noticed a bag that had been left at a train station and I could see a laptop in it....there were people everywhere but no one touched it! I'm still so very impressed about what happened to us.