My opinion is that the cop that made me delete all my airline photos a few years ago is ********. A friend and I were taking photos of the airplanes taking off and landing at the local airport and he came and told us it was illegal and we needed to delete the photos. He would not let us leave until he saw us delete them all and then checked the images left on our cameras to make sure we hadn't kept any.
Anyway, I think your image looks fine. It's probably more a matter of they already had their quota for the day. Although, stripping your data might prove interesting, too.