Was I wrong in this situation?

I am in the Army Reserve and this past weekend my unit and I went to the range. While at the range, I was told that one of my AGR E5 NCOs was being very disrespectful and unprofessional towards other NCOs and Officers while he was a range safety. Afterwards, my SFC supply sergeant asked him if he cleaned his weapon and he stated that he was not going to clean his MFing weapon. The SFC brought this to my attention and I said I would handle it. Later on, when I saw him again, I has him put away some items he was carrying and instructed him to bring his weapon while we walked to a secluded area. I had my LT platoon leader come with me. While I was doing this and trying to talk to him, he continuously interrupted me and was not treating me like his senior. I put him at the position of attention then told him to get in the front leaning rest position and he said he wasn't going to effing do that. I said great, let's go see the CSM. The CSM sided with him and said I escalated things too quickly (he said this with my E5 right there). He then said that he hold his AGR Soldiers at a higher standard than just a regular reservist. My brain was boiling... Doesn't take any consideration to my prior active time, my deployment, my rank, my leadership history.

I understand I might have escalated quickly but don't demean me in front my my Soldiers. I was going to have him in the front leaning rest while I calmly talk to him. I just wanted him to be uncomfortable while I explain what professionalism is and what the NCO Creed stands for and that I won't tolerate one of my NCOs disrespecting other NCOs or Officers.

Was I wrong in what I was doing? Am I too old school for today's Army? How could I have handled things differently? Now he probably thinks he is untouchable...

Update: So that individual got promoted and is awaiting transfer. He and I talked about what happened and he apologized for how he reacted. I just left it at that. I understand where I went wrong and if something like that happens again, I will be more prepared with having paperwork ready to escalate.

To give a little more insight on my unit, we are essentially the command part of a larger unit which we oversee. Similar to an HQ or HHC. It's hospital unit and we're the hospital center. Those of you who've been in a hospital unit, you probably understand the unique dynamic. With that being said, my position is basically the 1SG but with a squad sized element. My next higher up is the CSM, which is why I went to him instead of a 1SG.