Is there a place I can wait while my husband undergoes a procedure that may take several hours

No, c.Rich the surgery waiting room is NOT open.

I recently had the same question. There are waiting rooms in different departments. The Café is open and you can get food or drink there but you can't stay in the Café to eat. You can take food and drink to the waiting rooms or outside. Good wishes on the procedure.

The surgery waiting room is open