I guess being exposed to worldwide ridicule has a way of changing a policy:

School officials have decided to go light on an eighth-grader caught with contraband candy in New Haven, Connecticut.
[…]
Superintendent Reginald Mayo said in a statement late Wednesday that he and principal Eleanor Turner met with student Michael’s parents and that Turner decided to clear the boy’s record and restore him to his student council post.
[…]
Turner said she should have reinforced in writing the verbal warnings against candy transactions.
Michael had said that he didn’t realize his candy purchase was against the rules, but he did notice that the student selling the Skittles on February 26 was being secretive.

(via)
The kid has Mark Levine to thank:

Levin gave out the phone number of the spokesperson for the New Haven school district, but asked his listeners to be civilized about the calling. The civilized part was easy. Getting through was another matter. Within ten minutes of the number’s being given out, the New Haven school district’s phone system crashed, as did its website.
Within an hour of that, the wheels were already in motion to clear Sheridan’s name and restore his and the other student’s good standing.