It was a joke meant to emphasive that Jerseyites say shore (as opposed to a
New England coast or warmer climate beach).
But your proof of Jersey's having a shore was priceless.
I don't know if it's the pollution or the unmitigated awesomeness that requires a different word.
(me at a party in Belmar)
I just googled Belmar (having never heard of it) and this is the first image. NSFW