There’s no indication that happened either. The court docs say an investigator went to her house and questioned her, and she admitted to printing the doc and sending it to the press. That’s how 99% of police work is done in the real world.
Of course, but the NSA doesn’t need Microdots to track their own leaks even if the suspect doesn’t confess. They need Microdots to track YOUR printing which is why it is an affront to privacy.