…. I parked it with a light grey plastic mat on the ground under it and I'll check tomorrow morning and thereafter if anything is dripping and keep an eye on the oil level. ….
One thing to keep in mind when you're monitoring leakage on the ground is that most vehicles now have plastic splash guards installed on the underside.
On my Forte, a portion of one of those splash guards, which is installed around the oil pan, is an 'oil catcher'. Meaning that part of it is located in between the oil pan lip and the ground, and would collect oil dripping from that section of the pan. Once there is enough of a build up, oil will then drip off the splash guard onto the ground, but not before quite a bit has collected in the guard. And the guard is also somewhat recessed, which allows a bit to pool beyond just a surface coating.
But every vehicle is different, and I'm not familiar with your's and don't know how the guards are configured on it. However, I'd expect there to be one or more oil catcher guards in any case. Now, although I highly doubt that stealership did so, they MIGHT have cleaned the oil from the splash guard(s). If they did that, it might allow oil to pool on the guards for a period of time, giving you a false reading on the rate of leakage.
Although I don't believe this is a big concern for you, it is something for you to be aware of in case you aren't able to get a good look underneath the vehicle in the near future. And if you're checking the oil level regularly, you'll be fine in any case.
…. Thus far I have a feeling the dealer is claiming the sky is falling on me and trying to recoup some of that recall money. ...
Well, stuff like that happens all the time, and it would come as no surprise to those of us who call them stealerships. In the interest of fairness though, it would be helpful if you post back on this thread, once the complete extent of the leakage is known.
Then, if it turns out they were being completely honest in their diagnosis, we can post a formal apology to them