[luvsviola]

I would email his teacher and just tell her that you are concerned about the referral you got on Friday, and you'd like to talk about it with her. Give her your cell number and tell her that you are available all day, so please call you during her prep so you can understand exactly what happened, so you can best help your son.

(I know you know what happened, but you have to have a spirit of "We're all on the same team" when you initially contact the school)

While yes, it probably went in his file, in the grand scheme, one referral is nothing and won't haunt him for life.