Hook is a captain. He's used to his orders being taken. Granted he hasn't had men to order around for longer than he's been here, he's still not impressed by her petulance. It seems an elaborate act to prove to him she doesn't have to do what he asks, even though the fact she didn't break his nose and head for the stairwell might be an indication she isn't entirely opposed to it.

"I can pick it open," the pirate informs her, because pirate. Of course he can. He doubts that capacity is really going to help him, though. He softens, barely perceptible but there if one could squint. She's raw and reeling, even if physically she's all right, but he's still happy to see her. He was worried. "Open it, Cashmere. Please." He not her captain, an order might be the wrong tone. He's her friend, and friends don't make orders. It's an attempt to remind her he's on her side, despite the bodily removal from the lobby.