I went by Techshop SF this morning and was turned away at the gate. The manager told me that they shut down the business and that he was just notified last night. There has been no notice to members yet. He said that he doesn't know how it's going to work out with refunds for existing members.
Relevant article: https://makezine.com/2017/11/15/techshop-closes-doors-files-bankruptcy/