Homeowner Shoots Through FRONT DOOR At FAKE POLICE! Lawful?

Late last week several purported Seattle police officers began attempting a violent intrusion into an Auburn WA home (Auburn, incidentally is a full 17 miles outside of the Seattle city limits). The homeowner, perhaps finding the claims of these intruders to be police as less than credible, responds by firing a fussilade of rounds through his own front door at the intruders, inducing them to flee. Could this be a lawful use of force in self-defense and defense of dwelling? Even if the home...