She maliciously licked the donuts.

Video is in link. I would disagree and not call that malicious licking, more of taste testing.
The owner of the donut shop is ticked and has every right to be. He lost a grade for it? He wants money I am sure.
As far as the "Hate America" comment, eh, she is 22. My dd's are 18 and 24 and they say stupid stuff as well however no one in the public cares. Rookie celeb should know that once you step out of the door of your home, you may be "on camera".
http://abcnews.go.com/Entertainment/wireStory/ariana-grande-apologizes-hate-america-32308625