Don’t cops pull guns all the time? Don’t they do it for THEIR safety? I’ve seen images of them pointing loaded firearms at members of the public. Did this lady point the firearm at the couple, or just hold it at her side?
Bottom line is, you don’t draw your weapon unless you need to use deadly force and then you proceed to use deadly force. Waiving it around, threatening, warning shots, etc., are major no-nos.
I know a guy with extensive military and police credentials who majorly went off on a cop for drawing a weapon on him and his family during a routine traffic stop. Cops have more leeway than civilians, but they still need to avoid excessive use of firearms.