Agree that it's hard for a quart of water to come out of the tail pipe in the morning. Please be more factual!
Having said that, for every quart of gasoline burned, you get one quart of water in the form of water vapor. So, if you made numerous very short trips in the winter in Minnesota, you could accumulate quite a bit of water in your muffler, which could be blown out if you started up the car, raced the engine while sitting in the driveway. But still not a quart.
If you had a badly leaking head gasket you could theoretically get coolant to come out of the tail pipe, but the engine will likely seize before too long with such a leak. Is your coolant level going down as you drive?
Any 30 mile drive will clear out any liquid from the exhaust sytem, unless coolant is leaking in from the engine. Please take the car in and expain the symptoms you your mechanic.
The folks on this forum are trying to give you good advice, based on credible input from you.