Seems to me every day after October 15 you are owed $X per head per day, no matter the number. If the cattle are still there at 12:01 am November 1, I would see that the pasture is secure ( locks on gates or something to restrict access), or I would remove them from the pasture & relocate them to an area that is restricted. Idjit doesn't get his cows until the bill is settled.
And, I'd probably talk to a lawyer first. You're owed something.
Arguing with a Kansas State fan is like playing chess with a pigeon.
No matter how good you are, the pigeon is just going to s*** on the chessboard and strut around like it won anyway.