It's light LEAKS that cause hermie-ness. And, it's more of an issue for flowering, than vegging. Just put a dark plastic bag over her and keep her in the dark until you get to where you're going. Then start a veg light cycle. Try to keep Mom's "dawn" (lights on) at the same time as your friend had her at. If the move has a time change, take that into consideration (as well as Daylight savings time change) when you set your lights.Keep her in veg mode for a week or so, with very consistent light times. She should be alright. Remember, this is a weed after all, not orchids.