The 26-year-old actress was joined for the outing by her older sister Haylie.
Later in the day, Hilary went without her sweatshirt while stopping by Objets d’Art & Spirit to do some solo shopping.
“He’s basically Picasso ;)” Hilary wrote on her Twitter account last week along with one of her son’s paintings. Check it out in the gallery below!
10+ pictures inside of Hilary Duff doing some shopping on Super Bowl Sunday… More Here! »