Well, that hadn't worked quite the way he'd wanted. They'd both spotted him, and they were both probably crouched in the room, praying to God that he'd spare them. Wonderful.
He raised his voice so they could hear him. "I'm Robert, I'm from Washington. Calm down, I'm not after you. Who are you?"
Robert wasn't about to step into that room, they probably had guns trained on the doorway if he walked in - it was what he was doing.