Check these dates and heed them. And even when the date is good, make sure the food looks fresh. Make sure they read 40 degrees or lower.
Bacteria thrive in higher temperatures.
Freezer cases should be at zero degrees. Cleanliness in public areas probably indicates cleanliness behind the scenes in food-processing areas. The last thing to put in your cart is perishable, temperature-sensitive foods such as milk, eggs and meats. Take them directly home. Do not leave groceries in a car while running other errands.