Thats crazy. I have watched Firefighters lay down ladders on the cook inlet glacial silt when the tide is out to try and rescue people who go Razor Clam digging out there. If their ladders and hoses can reach the person stuck, then it is a good ending. If they are beyond that, then it is usually a bad ending.
Here is the inlet with the tide going out and the mud becoming visible.
That was a fascinating video string1946