Maybe just set it on fire and collect the insurance money? lol j/k, insurance fraud will land you in more trouble.

Seriously though, I'd be checking every nook and cranny to make sure nothing was left/hidden anywhere that could get you or a family member in trouble down the road.

Knew a guy who worked service at a dealership. Customer bought a car (dealer bought it at auction), brought the car back saying none of the windows roll down. Pulled the door covers, and the doors were all stuffed full with bags of marijuana. So much for their used car inspection process I guess. Anyway, that's what prompted my recommendation above given the circumstances.

Best of luck to you and your family.