It's pouring, the visibility is like 10 feet on the highway and hubby is tailgating behind a semi at…

It's pouring, the visibility is like 10 feet on the highway and hubby is tailgating behind a semi at 70 mph because his brother is bugging him about getting him to work on time. We already passed one car in the ditch. I told him to back off and he snapped at me for backseat driving. I am terrified for out six week old son. His mother is too. Idk what to do except pray.