Food pantries will give you items to store at home, and soup kitchens will feed you a warm meal. You can call 311 and ask for sites close to you that are open now. There are social workers on site at both types of locations that can assist you in getting additional help (although as a student with a non/immigrant visa you’re not eligible for cash assistance or SNAP/food stamps.) I’m sorry you’re hungry, and hope you get nourishment soon!