We went to NY last weekend for the memorial ceremonies at the National September 11 Memorial & Museum. I rode NJ Transit and the Path Trains, rode the subways as well since we were there the whole weekend. Even used the phone to purchase tickets and present our tickets through the NJT app to the conductors. I was watching movies on the train. I carried a Jackberry portable battery on my bag and charge the phone with it. Used the phone non-stop throughout the weekend. On the way back home another guy who went to see the US Open, was literally charging his Note 7 on one of the train's outlet. We made jokes about the phone. He too is riding it out until he gets a replacement.
The Path and Subway trains you insert your metro pass at the gates. There's no personnel that checks on passengers aboard the train. NJ Transit, maybe, since there's conductors checking on tickets on board. But I doubt they'll have time to check on phones.
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