" . . . nothing wrong with cutting the line."
It's bad enough when a local person does that. But when a foreigner tries to cut in line it reeks of seeking privilege.
My advice is just to patiently wait your turn. And make sure nobody tries to crowd in front of you.
Obviously, I don't mean to do it casually, this is when you are running late. And when cutting the line, I usually ask the first 2-3 person in line if it's ok.