Cockroach problem in car can not use poisons due to children thay are coming from everywhere ?

We had left the car window down overnight outside. 1 roach turned into 1000s very little ones we generally only see them everywhere at night time everywhere all over seats dashboard even the seatbelt panels . Is there a way to either flush em out or get them out with poison due to baby. Ps ill never leave the window down at night grrr