Jones Junction Service Center review: Intentinal Sabotage of perfectly good parts

Jones Junction Hyundai service center are theives and dangerous to you and your family. Please read on...
I had a recall on my wife's Santa Fe and also noticed a rear differential pinion seal leak, which is a warranty issue.
We dropped the car at Jone Hyundai Service Center on a Monday evening. I got a call on Tuesday morning that the recall inspection was complete, and yes, the pinion seal was leaking. No surprises so far. Then it started...
First, the tech said the seal replacement would be $268. So I had to fax over paperwork to prove the issue was a warranty repair. Take note this is a $20 part, so the rest would have been labor, which is completely insane. This is not a difficult repair.
Second, he told me the "bad news"; the differential was bad. He could "possibly" get a replacement under warranty. I ask why the rear was bad and he said since the seal was leaking the car was being run with no fluid in the rear, so it messed up the gears. I told him I had been checking the fluid level every other day and that it was in fact full when we dropped the car off on Monday. I said to fix the seal, under warranty and I would get a second opinion on the rear differential condition.
The reason I did this was, I had problems with the Jones service in the past, and had that in the back of my head when I had to go back (I will go to the Towson location if I have to take the car back for any other recals). Second, I was working on cars even before this tech was born. So I have a pretty good idea about how this works, and actually do most of my work myself, but in this case, a recall and warranty was involved.
Here's where it gets scary. They finally call me on Thursday, that car is done and ready (remember I dropped the car on Monday afternoon, for a small repair?). I decided to take my jug of rear end fluid and my hand pump with me, because I just do not trust the service at all at this point.
I pick the car up, drive up the street, pull over in the park and ride on Mountain Road, and proceed to check the rear fluid level. The real had to be drained completely to do this repair. Well, low and behold, the rear is completly dry of fluid! They intentionaly left it dry hopeing the rear would break and I would have to take it back to get it fixed.
I filled the rear, went right to my non-dealer shop and had my regualar mechanic check it out. He inspected it, and used mechanics stethascopes to listen toth e rear "noise". Not surprised again, the rear sounded better than a new car and was in perfect condition.
Jones service, not only lied to me, they potentially put my wife and daughter in a dangerous situation. If I had not checked the fluid and my wife and daughter where out on the highway and the rear decided to break, in worse case the rear could have locked and a multiple roll over crash could have insude. This of course can be fatal. Even in least case, the rear breaks, and they are stranded on the highway until help comes.
I did not trust them when I had to go in for this recall, and am totally positive they are decieving not only me, but who knows how many other customers and even putting them not only in a finacial bind, but in danger also!
Please, please, do not go to this service center. If you do, be sure to have the car cheked out again by another, trusting source.