He found the remote on the ground in the debris of the damaged barrels, and clicked the top button. When nothing happened, he tried the second button, and the glowing ceased. Henderson left with the remote, sending others down to the cellar to gather any evidence, and to arrange for someone to come look at the cage, an unspoken agreement between himself and the officer to never mention the green glow again.
Good explanation as to what happened to the Kryptonite cage. That fellow officer has got to be related to a clam for him to never mention what he and Henderson saw in the wine cellar.