How can I get dry rub to stick to cooked chicken? How can I get dry rub to stick to baked or deep fried chicken wings after I've cooked them?
If you miss your time window when the wings are hot enough to have seasoning stick, I know of two other options:

Spray the wings with a spray oil like olive or coconut oil and tumble them with or in the seasoning

Rub the wings with mustard, which is like a glue and then tumble them with or in the seasoning.  Herb-crusted meats or fish is often done this way