Looks like Hershey Park has joined the movement
http://www.pennlive.com/entertainment/index.ssf/2015/05/hersheypark_selfie_sticks.html
"Use of photo arms, more commonly known as "Selfie-Sticks," is strictly prohibited on all rides and attractions at Hersheypark to ensure the safety of our guests. Selfie-Sticks should be left with a non-rider or stowed in a locker. Guests that do not comply with this policy may be subject to dismissal without refund."
People are getting serious about how dangerous and obnoxious these things are at amusement parks, lol.