I'm not quite sure what the etiquette is for "what to do right after you've just shot your friend in the face" but
this doesn't really sound like it.
She said Cheney stayed “close but cool” while the agents and medical personnel treated Whittington, then took him by ambulance to the hospital. Later, the hunting group sat down for dinner while Whittington was being treated, receiving updates from a family member at the hospital. Armstrong described Cheney's demeanor during dinner as “very worried” about Whittington.