The prank, which rose to the level of "felony-level vandalism," meant school employees were busy cleaning the glue from door locks so students could get in for their first-period classes, Michael Clear, assistant superintendent of business and facilities for the Simi Valley Unified School District, was quoted by the Los Angeles Times as saying.
"There are harmless pranks and then there are pranks like this which are very expensive to fix," Clear said.
The culprits were identified through surveillance video, and schools officials said they will work with the families to recoup any costs incurred because of the prank.
Simi Valley police Lt. Stephanie Shannon said the two students will not get to make their graduation walk but won't be making a perp walk either.
"With schools being challenged with budget cuts, these kinds of pranks are very costly at a time that schools can least afford it," Shannon said. "With these potential charges, they were facing a permanent adult criminal record all for the sake of a prank. The amount of the damage and costs associated with the damage would normally reach felony-level vandalism."