He said to them, Follow after me; for Yahweh has delivered your enemies the Moabites into your hand. They went down after him, and took the fords of the Jordan against the Moabites, and didn't allow a man to pass over.
The writer may have recorded this last disgusting detail to draw a parallel with the unclean Moabites’ departure from the land following Ehud’s victory. Notice the cool way Ehud behaved after he slew the king in his cool room (Judges 3:23). Perhaps it was the odor of Eglon’s excrement as well as the locked doors that led the servants to conclude that the king was relieving himself (Judges 3:24).