I know the exact spot you are talking about, and I have heard some stories of him giving other people trouble, even before the flood.
Technically he probably can't close the road himself because it's a public easement, but at the same time, you are on his property so you gotta at least be respectful of his wishes. I would have driven around to the other side and gone the other direction
1984 Toy Longbed 4x4: lifted, locked, incapable of highway speed
1985 FJ60: OME, 33's, Lockright, Rust
1997 4Runner SR5: Rolled , 1999 4runner SR5: V6, 5-speed, e-locker, 285's, SS 1.2
1988 FJ62: TBI 350, 700r4, FF rear, ARB locked F/R, no rust and shiny paint!
1996 Lexus LX450: Factory locked front & rear, OME lift, and a salvage title. 307k and counting