Heck, even when my hb went to the pain clinic to help with his phantom pain, they kept him for a full 6 weeks, the first 2 he wasn't allowed any visitors either because they felt it would interfere with the psychological treatment and after that only on weekends until he was done.
So for a full work up to determine whether OP's GAD was in fact at a stage on the 14th of Feb 2013 to have impacted on his ability to control himself, working under the assumption that he had been in a state of fear caused by his phobia of intruders, I don't see how stopping in for an hour or two daily or whatever the schedule will be, will be able to make a proper diagnosis or finding. Sleeping habits, eating/drinking habits, social interaction, even what might cause him any abdominal discomfort in the way of routine, or lack of it, can't be observed professionally... about the only thing they can do that may help, is perhaps call in other sources for past information/behaviour as OP was growing up and especially within the last few years. I suppose they could start by reading his book and any news articles of his escapades, that may help with some insight as well.