My son is one years old and has visitation with his Dad three times a week and comes back smelling cigarette smoke and coughing, what can i do??

It was court ordered by a judge for visitation, judge stated no smoking around child, etc. and its in the car also, reaks of smoke. We go back to court March 12th but dont know what to do in the meantime about visitation with all this smoke. His clothes smell of smoke when he comes home, i saved them in a bag for judge to smell if he wants too see them. I want to take son to doctors to get checked and if she gives me a note saying all about the smoke that wouldnt judge change visitation to not his home or car and somewhere else. I am new to this but I dont want my son getting sick. He is prone to upper respiratory infections, had rsv when he was a baby. Help please!!