They protect boaties along the largest coastal area in New Zealand.
Banshee's owner slipped in the wet, and lost the lead - the dog went on to vicously attack a sheep.
The bird was the culinary champion at an annual game bird food night.
They will appear in court on Friday.
"The poles kind of look like scaffolding, so I always thought it was unfinished."
Getting lost is not an offence, police said.
Local river levels are dropping despite recent rain.
Once he landed, the tide became his next problem.
One firefighter believes something similar could happen again.