Even buttoning his jacket. Obsessed with his appearance, even when in supposed "pain." What a fraud. I saw him get out of the limo, walk normally, turn his head, turn his body, wave. Then start to take baby steps, but he made it in and up the steps.
He could do none of that with a back pain severe enough to require a trip to the ER. A regular, uncomfortable backache, maybe. But if he went to the ER and then walked, moved, and waved, he is just pretending - again.