Many years ago I read the Patriot Act. I don't remember any ban on photography from or in a public place. After 911 we got calls on all types of people taking photographs in public places as they had done for many years. It was a waste of police services, not illegal and they were normally gone when arrived.
I had to work at PDX, (Portland Airport) not a choice. They took 8 to 10 cops at of patrol to allow the Airport to reopen for months after 911 happened. The reason was FAA made a mandate of the number of cops needed in each airport to reopen. PDX was short staffed. The airport could not open until the correct number of cops where there on the property. The Airport has it's own PD. We back filled the empty slots, so it could open. NG supplied 6 troops on the lobby area. Several times a NG Sgt. had come to my post demanding I stop or arrest someone for taking photographs. I couldn't leave my post and even if I could I told him it was not illegal. Each time they said these words "Well we don't like it." Well, it's not illegal so I don't care what you like or dislike.
I am guessing the person who told Blume it was a crime, really just didn't like him taking pictures. Now if it's posted, all over the place so everyone knows it's not allowed then it could be, but likely it was just "we don't like it."