We were told that the dog we adopted was afraid of fireworks. A lot of people in our area (not directly next door) were doing them. We were out by the solo stove. She wasn’t bothered.
In case anyone really can’t figure this out on their own:
https://customerservice.costco.com/app/answers/answer_view/a_id/701/~/what-are-costco’s-holiday-closures%3F
Yeah. When I walked the dog at 6AM they were terrible. Later on, when we did a longer walk (8:30 or so) they weren’t as bad. The hat thing is definitely a good idea