The officer looks rather haggard, but his sympathetic look in return spoke of how he was most sorry for the person who had daily Sherlock-minding responsibilities.

Sherlock lets himself be led by John, still unsteady on his feet, as he sits and takes the cup thrust in his hands. He sips the water thoughtfully as the blurry events of the precious day and night are starting to embarrassingly make themselves known. He probably reeks of pool chlorine and booze, his curls a veritable rat's nest as he never bothered to comb it after getting out of the water.

He doesn't meet John's gaze, the guilt starting to set in.

The officer comes by again and delivers Sherlock's few things, has him sign off on a couple forms and informed him he was free to go.