I wonder if that is an exact quote or a paraphrase:
"I got a gun," as he reached for the side with a gun, an actual,
"Officer, I have a firearm on me,"
or her words are a complete lie and he never mentioned or the cop never heard/understood anything about a gun.
The exact words, the clarity of those words, and the timing between words and movements all matter. Also, if he said something about a gun or started reaching and the cop saw a gun as she started shrieking incomprehensibly, that would (1) make the cop nervous, and (2) keep her "boyfriend" from hearing if the cop told him to freeze.
Some women are just not worth being around, and she may be one of them.
I say "may" because we really don't know. We only have one side of the events so far, well two sides, but from the same person. The dashcam video may show that the cop is completely innocent, it may show that he is completely guilty, or it may not help at all.
Guffawing here. That is well-phrased; nice one.