Ambrose glances at her and wonders if she is sleeping or just closing her eyes to avoid his question. Maybe she just wants some silence, so he didnt bother her. When he reached a red light, he quickly adjusts her seat so that it would be more comfortable for her to sleep. He checks the traffic light and it was still red, he then removes his jacket and places it over her upper body while making sure the cars temperature is warm enough.
Folaw felt when he did all this but was too tired to open her mouth and say thank you. It seem that she is used to sleeping off while he drives the car. Ambrose was focused on driving carefully not going too fast or too slow.