Louie was hoping to order a pizza because he didn't buy any actual food at Walmart. Well, except maybe a Subway sammich (with extra meat and cheese) on the way out and some candy bars and one liter Coke for the road.
Louie always treats eating take-out food as an everyday thing. For most people (who actually work for their money) eating out is an occasional thing. A maybe two or three times a week at most if they're just too busy to cook or maybe if they actually have time to take a lunch break at their jobs instead of just working through it to catch up on whatever they're doing. Most people with rent/mortgages, car payments, bills, etc. just don't have the money to afford to eat out for every bills. Eating out for most people is a special-ish occasion. Going on a date with your spouse/significant other, getting together with friends after a long work week, getting together with your parents because you've been too busy with life to visit, or a birthday/anniversary. Eating out all the time is impractical and unaffordable for normal working stiffs, so it's toast and coffee for breakfast (if that), a brown bag lunch, and leftovers or mac and cheese for dinner. Maybe an actual meal if you've got the energy or a stay at home spouse who cooks. Louie eats out more than anyone I know of, and certainly more often than is healthy.