I came across a dude at Grand Canyon operating a drone near the visitors center. I told him that drone use was not allowed in the Canyon. He said he had a permit, which I knew was a lie. I stepped aside, pulled out my phone, and he immediately recovered his drone and ran.
There was another guy doing the same thing and a ranger approached him. He claimed ignorance and then recovered his drone.
Do you really want action to be taken beyond self policing? Approaching someone and reminding them of the rules might be a buzz kill but if you have any hopes of holding on to some remaining freedom with these things, you do yourself and others a favor. I can assure the FAA is NOT done with regulating them and this will most certainly get passed down to local law enforcement. Education will increase and the next time you are zipping along the Las Vegas skyline, you might be approached, your drone confiscated, and you get fined or worse. The sUAS is coming under more scrutiny and we can choose sides now...but you know you will not win if you choose the side of reckless use.
For me, it is simply not worth it. I am not sure if they can take certificate action against me (ATP rated pilot), but if they did, it would have a seriously negative impact on my career.