Since I bought my car from someone who had a side career as an S&M porn clown (also marriage counselor, meeting facilitator and DJ) I would say clean out the interior really well. Then clean it again.
I hate to white knight Madge, but, having been through a similar situation, sometimes you just have to stop trying to fix someone's life. That doesn't mean you stop caring.
There are still plenty of reasons to jailbreak...