Okay there is something more here and I suspect she was giving attitude to the border officials. People I used to teach in the United States and did so for a three year period during the school term at a high school military academy. I would have to go to a specified border crossing after having all of my paper work in order and spend the better part of a morning getting things sorted out. The number of times I heard "attitude" was unbelievable - people think they have a "right" to cross the border and they don't. People were turned back because of attitude. 

Additional hint: take off you hijab, you can do without it for a few minutes and for God's sake don't wear a niqab or a burka - if you do you are nuts and will be banned for sure.