How much trouble can I get in?

My friend uses edibles to calm her down with anxiety but doesn’t have a medical card to use them. How much trouble can I get in if I allow her to have an edible on her in my car and I would be the driver? Like what’s the least that could happen and what’s the most that could happen?  The edible would be in her purse. Thanks for taking the time to answer.

2017-04-11T00:37:33.809Z