It doesn't sound to me like mate is drunk. I think he's just reporting that he shot an undersized protected fish and the cops took him to jail. Simple as that.
The warden threw a party in the county jail.
The prison band was there and they began to wail.
The band was jumpin and the joint began to swing.
You shouldve heard those knocked out jailbirds sing.
Lets rock, everybody, lets rock.
Everybody in the whole cell block
Was dancin to the jailhouse rock. 
