Jenni- instead of the approach you took, I'd submit a complaint to DL as the offended one, as this situation clearly bothered you in flight & made for a less reasonable experience. Whether in F or Y, I don't like to be surrounded by those type of people, despite being the type of person that dances with inanimate objects after too many cocktails.
I have been on DL before where 2 college kids behind me (I was in college at the time) brought their own booze on board & were semi-harassing the old guy next to them, and even spilled a drink on him. He didn't say anything but I mentioned it to the FA that they were being obnoxious & the confiscated their bottle (not sure if it was legal or not but they complied).
Unfortunately Bose QC-2's or 3's can't tune those type of people out (of life).