Emmi,

NEVER, not even once, don't start, ever; they get themselves out, they can get themselves back. There are only 2 exceptions and one of those is a maybe, these are:

1. For some unfathomable reason you have loaned them your bike it is legitimate to retrieve it - and them if suitably clean for the inside of the car.

2. Arterial bleeding combined with them owing you money (it is a judgement call on how much cash warrants their being collected).

Tough love maybe but there are limits.