If it's not for money, I don't think it's a big deal. I think it shows your class to call a DQ on yourself. The other guy is making a fuss over nothing (bragging rights). Besides, I'm sure there are other instances of illegality going on like illegal clubs being used when reporting scores for handicapping purposes.
Personally, I think it's a little lame that he did that.
If you are not playing for money, who cares? Ask JB, or SeeMoreGuy how many clubs I had in my bag at the outing when we did the shotgun at the new course. Just a hint, it was over 20!