I would ignore it at this point, since saying anything to him might just cause more drama and Spot hates drama. Depending on the politics in your store, HR may not help you anyway. As long as the rest of your leadership is satisfied with your performance you should be fine, but keep an eye out for any changes in the way leadership treats you, he may be trying to submarine you with other members of leadership. Just a guess, but it sounds to me like your closing lead is envious of your success. You proved that you could do the job when you were running the team without the pay, so you have earned your promotion. If your closing lead says anything to you directly, be sure to document everything in case you need to take a chance on going to HR later. Just continue doing your best and good luck!