moisture very difficult to wipe off,possibly anti-freeze mix
That’s an indication of a leaking heater core.
Tester
I agree, and it’s hazardous to be breathing anti-freeze fumes. You’ll want to get this repaired quickly.
I have absolutely nothing technical to add.
But I do want to emphasize your safety. Get it repaired ASAP, even if it means renting a car for a few days. You are worth far more than a couple hundred bucks.