There is no otogar in Kemer, as you say you pick them up on the street.
If you go to the dolmus station in Fethiye behind the petrol stations, a lot of the dolmus routes have boards/bits of paper with timetables printed on or just speak to a driver and he will probably produce a typed timetable for you. Travelling on the dolmus is such a fun way of exploring the area around Fethiye - we just love it.