Please tell me how my daughter went to school with braids and a bun and they did a head check for…

Please tell me how my daughter went to school with braids and a bun and they did a head check for lice (as they do every week) but she came home like this?! At least put it back up I'm trying to avoid the lice jumping back into her head! There are 4 people in her class with it right now and she had it a couple of weeks ago and it was beyond a PAIN to get rid of