Yeah I was gonna ask if it had rained cuz thats where the water would have come from I just didn't think that much water could come from the condenser.
If you look behind the engine on the firewall kind of on the passenger side of the car there is a little rubber boot that comes off the firewall that is the drain for the condenser for the ac if that is plugged then yeah the water will most likely end up on your floorboard. I'm not sure where the other end of the line is though, maybe do some a Google search for a diagram of the HVAC system.