If you really thought your son was in danger, why allow him to be chauffeured by a person that smokes weed all the time? Seems like a healthy and safe boundary to not allow him in the car with that person if you really have reason to suspect they might be driving while under the influence.
W 34 Me 42 Married 7 years together 8 0 kids 1 beloved dog BD 4/6/2018 I moved out 4/7/2018 I moved back in alone 8/05/2018 I file 3/06/2019 D official 5/7/2019