Miranda Lambert involved in public confrontation at Nashville restaurant

Lambert was dining with her mother and a family friend at a restaurant when an older man began fighting with Lambert's friend in the restroom after making a comment about millennials and their phones.
The argument spilled over into the restaurant, where the unidentified man approached Lambert's table and began screaming. 
Lambert began to get riled up and started making angry comments of her own to the man who had started the argument. 
She walked over to the man's wife, engaging in an argument with her and finally throwing a salad in the woman's lap.

Lambert and her party had already left by the time officers arrived at the restaurant.