There are two places I know of where there is parking near a beach dive for vehicles with trailers, they mean boat trailers but hopefully the meter maid has some common sense but not always. I once got ticketed in Toms River NJ, I pulled thru two parking spots, paid for both but there was a sign, "Head in parking only"
One spot is Blue Heron Bridge in WPB, there are always a bunch of divers there and hopefully you can find a non-diver with them to watch Smokey. There are sometimes homeless living under the bridge so I wouldn’t leave Smokey alone.
L Street on Shark River in Belmar NJ has trailer parking. There is a group of us from DB diving along the river during the summer and fall and there is usually surface support who could watch Smokey.
You should have been in NJ a few months ago, they opened the dam at the lake near me and everyone with a metal detector was sweeping what had been under up to 6’ of water. Yesterday the beach cleaner went thru so there’s probably nothing left to find.
If you want to spend a week exploring the Pinelands let me know, there’s room in the drive for a class A