Ashane -- So I will share a story of how doing stupid stuff overseas can hurt your career for years. I heard this from my mom's friend. Uncle was IFS and Aunty went wherever he was posted. She once shared an incident that happened years ago.
So lady was recruited as admin in embassy. This was a local recruitment but it did go through checks in India. She had done some govt exams but she got married off early. So she had some govt job aspirations and was excited to get this admin job. She was talented and hardworking.
Her husband on the other hand was #1 fraud. He was doing some business and cheated the local partner. That business partner filed a case and husband was arrested. Lady tried to argue that husband should not be prosecuted because she worked in the embassy but that tactic did not work.
However, because she was part of the embassy, staff had to get involved. Eventually local govt agreed to not give him jail time but he did get record and was deported along with lady and their children. Everything they owned was confiscated to repay the cheated amount but it only covered half or so.
Lady thought she would be able to transfer to some other govt job back in India but she was totally blacklisted. It didn't matter that her service record was excellent but because of her fraud husband, she got screwed over completely.
So breaks in protocol are taken very seriously and it can have long term effects.
This being a daily drama, we should essentially throw out our brains especially since this drama is throwing all logic out here with Arjun being IAS + IPS + IFS. 
However, from a character analysis, Arjun's actions were wrong and he damaged his own career. Sure, he had good intentions in wanting to save Megha but the way he went about it was off. Protocols exist for a reason.