Unless it’s Halloween, right.
In New Jersey he’d be under arrest for “brandishing” his firearm, assuming he was even able to get a carry permit.
There is a lot to be said about being aware of your surroundings. Parking next to a gold car with two black males in it was probably not the smartest thing to do. I agree with you that it is highly probable that he could be charged with brandishing. From the article it does not seem that he tried to de-escalate or leave the area before confronting the aggressors with his firearm. They could have very easily shot him if they had the drop on him.