Please bear in mind that the efficiency of the A/C to dehumidify outside incoming airflow declines dramatically with the temperature of the incoming airflow.
Below about 50F the humidity must be unusually high (Seattle) for an A/C evaporator operating at 33F (below would lead to freezing) to be helpful. And the closer the OAT is to 33F the less efficient it will be until at about 35F it will be completely non-functional.
The quickest way to overcome a fogged over windshield in ANY climatic circumstance is to turn the heat to max, turn the blower full up, and now activate the defog/demist function. Lowering a rear window slightly to allow the resulting humid atmosphere to escape will also help immensely.
Also read the thread:
"03 Camry - Air smells bad"
At:
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