Many doctors moonlight or have private clinics in the evening. Some doctors even work full time at their clinics. So there are "high street" clinics in all towns. They will provide rabies shots and don't have the overheads that hospitals have.
The rub is that you have to wander, ride, drive around and find out where they are, Or type "clinic" into google maps. That usually comes up with "clinic near me"
Cost for rabies shot is around 500B