They have one A320 they have been using around SFO lately,

I've seen it taxi around the airport...

It's generally parked over at Signature.
Yesterday they had it over at the international terminal looked like A12 where KLM usually parks...

Also ground crews have been painting lead in lines from A-taxiway to the D gates at the closed center concourse.

something is in the works...


Cheers
George