Is the school thing their actual school, or is this some twisted reality of school in the fey realm?
There is the ever popular attack/emergency that occurs while they are in their civilian persona. Always good for trying to be sneaky and not give away their identities. Alternatively, it could be a chance for someone to see or figure out an identity or two. This might give the sort of trouble (exposure, blackmail, excessive fandom) that the group might use to make more proactive choices (coming up with a plan to deal with it).
Alternatively, maybe the patrols turn up some odd clues or behavior that you don't explain and leave for them to try and figure out. This could possibly lead to plans to find more clues, trapping or ambushing the perpetrators, interrogating them. Or what if they don't know anything or even that they have committed crimes and the heroes have to unravel why and how they are being manipulated.
Good luck and have a great game!