Reston North Pointe Chick Fil a - Bad Nanny Sighting!

This happened at the Parking Lot Entrance of Reston North Pointe Chick fil A at about 4pm on april 18 2019

Car - Possibly 2016 silver dodge caravan

kids - 3, maybe siblings, 2 girls  long brown hair and 1 boy 3-5 years

Nanny - AfricanA female, orange ponytail , 5'  5" 200lb, and had a friend who was with her.

I was ordering and I heard loud yelling, I heard the Nanny saying SHUT UP and hitting the girl on the back of her head, the guy was acting in a way that made me uncomfortable