My car started smoking after getting off the freeway and now the heat isn't blowing hot

Hello, smoking by the wipers inside or outside the vehicle? Simply put, the cooling system needs to be evaluated for possible concerns - leaks, restrictions, air pockets in the system. Is the engine's thermostat opening when needed, and closing when needed? What is the operating temperature of the engine as measured with a temperature gun, and with the engine coolant temperature sensor? You'll need too have some professional testing performed on the vehicle to figure out what's going on. https://repairpal.com/auto-repair-near-me