I should go earlier. I went around 7pm IIRC. My biggest problem was the people inside. I kept trying to stay out of people's way but it was impossible. People kept walking at me without giving me a chance to move. Other people were travelling down the middle of the aisle, effectively blocking anyone from going by. I think Costco needs to make aisles one-way for now, and tape off sections to give people a hint at the recommended spacing.