This guy is not dumb by any stretch of the imagination. He also didn't make this decision overnight. If I had to guess, he planned this all very well with all considerations in mind .
The fact that he noted his location at all is interesting in that he obviously doesn't want to get caught. So why bring it up? He could have just as easily left that detail anonymous. Makes me wonder if there's a tactic in mind that we might not have seen just yet.