We'd have to come up with a reason to storm the beaches with the rest. If he wanted to do so I can see him tricking her by showing him his identification allowing him in certain danger situations, and she thinks it's for all high level danger areas rather then lower level ones. That would be awfully stupid of her at first glance, but being not from the US perhaps she just doesn't know the exact policies of the GCA, a United States organization. She'd think it's weird, to be sure, but she'd probably have nobody around who knew about it in order to make sure.