Is is possible that ATC at ZNY uses ACY as a back-up transmitter for 133.5? I expect they have a lot of BUEC xmitters that are "unpublished". Perhaps the controllers were using this temporarily or as a test? The signal was so strong, it seems unlikely that is was coming from Barnegat. Conjecture on my part... You are right...normally from ACY area, Barnegat ground signal is weak at best with an omni-directional antenna.... Plus, I'm not hearing ZNY ATC today.
Too bad...snow storm tomorrow should be a good listen! Really glad 133.125 is coming in nice though!