Seems to be three viable options...

1) Have someone continue the grow while away...
2) Harvest them at the last minute, and bemoan the tragic timing...
3) Harvest them at the last minute, and be thankful you've got the knowledge and ability to grow more at a later date. :jointsmile:

p.s. I wouldn't share any with your parents, if they won't even let you grow at home. :thumbsup: