Can I sue?
As an old law professor once said, you can sue the Bishop of Boston for bastardy if you wish. These state laws are great but don't think you still can't be sued. A lawyer I know also told me that many of these laws don't prevent the bad guy's lawyer from suing you for using excessive force. My take has always been: If you shoot someone, you will probably get sued by someone and legal defense is expensive.
"God and the Soldier we adore, in time of trouble but not before. When the danger's past and the wrong been righted, God is forgotten and the Soldier slighted."