Wrong law. The one you need to reference is the 'Stand Your Ground' law, AKA SB 378: "An act relating to the use of force or deadly force in defense of a person.". Specifically the part where it says "...The actor's belief...that the deadly force was immediately necessary...is presumed to be reasonable if the actor knew or had reason to believe that the person against whom the deadly force was used: (1) unlawfully entered, or was attempting to enter unlawfully, the actor's habitation, vehicle, or place of business or employment..."
They had just had a car accident that she admitted to. So by law they were obligated to share information.
He was lawfully permitted to be at her side window requesting insurance information and she knew it.
If in fact he did pull on the handle, it wasn't to enter the vehicle but to get the insurance information from her -- and she knew that.
Even if he was pulling on the handle, was he really "attempting to enter unlawfully" or attempting to get from her what the law requires.