I've been wearing that shirt as well for a couple years now. Most of my experiences are like your first one. I've been "selected" for the NoS a couple times while wearing it (back when it was secondary only), but I always opted out.
Yours is by far worse than any I had experienced. I'd definitely file a complaint.
I'd be curious as to your experiences with pax and crew on it. I've talked to a lot of pax and crew (many would come up and ask about where I got the shirt), and most have been quite supportive of it.
Super