Launch crew hat? The guy doesn't sound legit at all. The rangers that run the put-in and take-out were all in uniform the 3 days I was there the end of July. They were some of the most friendly rangers I've run into up there. So unless the rangers were replaced by a temp or something the guy doesn't sound legit.
In fact, one of the rangers grabbed 3 kid PFDs that we left behind (someone plopped their raft on top of the PFDs) after an early evening run and returned them to me the next morning at the take-out. Saved me $300.