I understand both sides of this argument, and I am a full grown adult today. However, when I was 18, I was the closing manager for a Burger King in Queens, NY. After we closed, 2 former employees used a back door to enter the store, pistol whipped my friend & I, locked my other friend in the walk-in freezer, and held us at shotgun point while one of our porters ran 2 blocks up Northern Boulevard and flagged down 2 cops inside a Dunkin' Donuts (Not joking
Those 2 cops called the cavalry, and they ended up shooting and killing both robbers and probably saved my life & the life of my friend (both robbers were zooted on crack). I told the owners that any time ANY cop came in that store, I just would not accept their money. My brother is a disabled Marine, and I feel there is a respect due our men & women in uniform that comes from putting themselves in harms way.
Do I believe there is a huge problem with today's Police forces? YES Going from Blue uniforms to Black fatigues, military training, etc.. Even calling themselves "Law Enforcement", when in fact they have always been "Peace Officers".
The power hungry have brought this on themselves to a large degree, but I feel that in this case, that barista was trying to embarrass that officer with her deliberate taunts.
Let the guy use the restroom.
Just my 2 cents.