He went full on Karen, here is at the very end jawing at the ref
But he went onto the field at the start of the play and drew the flag.
He will be fined for this and he should be.
Utah AD Mark Harlan has exposed himself as an unprofessional clown for that behavior.
As an AD you have to show a certain level of professionalism and waving your finger in the face of an official after you lost on a live TV is extremely unprofessional.