Working at the airport shouldn't be a problem. You are legally able to work so just as jose said, if they don't require permanent status or something further, you shouldn't have any problems.
By the way, keep us updated on how it goes please.
Welcome to the forums. Also I would just like to say that this section is only for introductions. If you are trying to get answers, post in the questions & answers section.
But welcome on your stay once again!
Its defiantly not a big deal to change banks. You just simply tell them you want to close ur bank account and you go ahead and open it elsewhere. Or you can simply not use it and open another one. Wells Fargo is pretty good in my opinion and most of the major banks have similar policies because they have to compete against each other, so it shouldn't be too bad.