No puddle under car after using the A/C

It has been hot lately here in SoCal and so the A/C in our 2007 has seen some use, and a lot more is expected soon. Oddly, when returning from trips no puddles/drips are appearing underneath the car. Every other car I have ever owned has dripped condensation under those conditions. So far no wet carpets, sloshing sounds, or any other of the typical symptoms of a blocked drain line. It does have the slightly moldy "A/C was used yesterday smell" which many other cars also have. Also the A/C was broken for most of the last hot season, until the dealer finally replaced the evaporator. I'm hoping those don't come with a plug in the outlet which must be removed during installation, since given the number of times they had it in the shop trying to fix the A/C, leaving a plug like that in would be about par for the course!

There was a video on youtube for a "Prius" (no year given) showing the drain line running under the carpet in the front passenger foot well. Is that the position on a Gen 2, and is there a junction there that can be pulled apart to access the line up into the evaporator and down to the actual drain outlet?

Thanks.

 

Drove it around with the A/C on in recirc mode, all windows up. The A/C was blowing nice and cold. Parked it in the driveway and waited. After a while it started dripping, but not very much, through an approximately 2" diameter round hole in a transverse grey metal member, about 2 feet in from the passenger side front wheel. Note it was dripping off the metal (hanging drops), at the point closest to the front of the car, not dropping cleanly through the hole. So it looks like the drain outlet is over the metal and not positioned to drip through it. The exhaust path is nearby and that metal is probably pretty warm, so it may be that most of the missing condensate is evaporating. I would need to jack up the car and crawl in there to see better.

Presumably the drain is supposed to drop water through that hole rather than drip it onto the metal member?