Re: Failure to launch.
there are a number of beaches in North Carolina where the only access is unpaved, so heavy equipment (including house trailers) is moved on the hard sand on the beach. Used to be in Virginia, too, but this is a newer vehicle. So he could have been moving it up the beach to put on a lot, and got stuck en route. Possibly backing to get a straight shot off the beach and over the dunes, went too far and got hung up. I think the waves then moved the trailer sideways; you can see that the wash has locked in his tires.
Certainly looks like an east coast beach but I know there are similar beaches elsewhere.
I see a tow strap on his front bumper. Do you call AAA, or Sea Tow?