I agree that the officers did exactly what they should have...
Our middle and high schools have SROs (School Resource Officers). I happen to know the one that will be at the middle school our oldest DS wil be going to.
I told DS that if Sgt. XXXX had to contact me because DS had behaved badly he better HOPE that Sgt. XXX arrested him---cause he wouldn't want to be living in the house w/ me!
Kids are kids, and do stupid things. Sometimes, the stupid things require gentle redirection and teaching. Sometimes, the stupid things require tough redirection and tough teaching....

(and I know that should Sgt. XXX have to call me, it will be a significant issue. Sgt. XXX is very good and very fair and much loved by the kids.)

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Mental that one, I'm telling you. ---Ron Weasley, "Harry Potter and the Chamber of Secrets"