An instructor...
When I was a student, one of my instructors had to land at a military facility in an emergency.
(heard second hand, and a long time ago... so may not be 100% accurate)
He told me that on the approach the tower controllers were doing their up most. But once on the ground, the ground security was extremely hostile and suspicious, even delaying some medical attention while they checked out the situation.
They did give him a considerable stack of paperwork for an Unauthorized Landing. But he simply wrote on it, "Smoke in cockpit; Declared Emergency", and gave it back. I believe they accepted that.