I did better - I moved!! Seriously, cleaning a carpet does get the carpet wet. Very wet. But, if you have A/C (r better yet, if you clean it in the heating season), you can get it totally dry within 2 or 3 days. Really, it pretty much dries out within 24 hours or so, but you know that you need to dehumidify the air constantly for a few days to really wick the moisture out. Air conditioning does this fairly well - a gas furnace in the dead of winter does even better.
As an ex-20 year carpet cleaner, I know that properly cleaned carpet will be dry withing 4-8 hours.
Unfortunately, to get really dirty carpet really clean and then really dry in this time period requires something like $40k in cleaning equipment and in certain weather conditions may require additional drying equipment. Not to mention that you have to know how to use the equipment properly.
Not exactly a do it yourself situation.