I've seen very few store pickup stock updates after hours. Most of them happen during the day, if at all. I built Machookup, which will send you an alert when stores near your zip have pickup stock. Longer thread on MH here: https://forums.macrumors.com/threads/machookup-airpods-stock-alerts.2024242/
Thanks for the update. I already signed up for your service like a week ago and hunting down since then. Tommorrow, is the last time I will go and try my cahnce at the Apple store in Berkeley or order online.