On closer inspection (H/T Steven!), this outpost of the quick-serve chain based in California wasn't open just yet ... with a worker stating they would be ready for guests next week.
A look inside the establishment, the former AT&T store and the Vitamin Shoppe, shows just a few tables for indoor Panda Expressing. However, there are three tables (no chairs!) (randomly?) set up on the 14th Street side of the storefront.