I'll knock out the lights first and then lead them away. Once you hear one of their kind calling, give them another five minutes for the last of them to move away before moving.
[His tone heavily implies she should stay in whatever building she holes up in, although with her current skill, he trusts she'll be able to take care of her. Hei however, doesn't want to stay longer than necessary on the off chance she figures out who he is. There was still some value in secrecy.]