[blam]

" Only saw it for a second but was that a U2 spy plane that just did the flyover?"

Yup. I saw that.

I thought all the U2's had been decommissioned?

[BiggBob]

This article is a few months old but it says some still fly out out Beale Air Force Base. Near Sacramento

https://www.wsj.com/articles/the-u-2-spy-plane-still-flying-combat-missions-60-years-after-debut-1528382700