Thanks for the feedback. I did place a call to another store and spoke to a very helpful sales associate. He told me there were three sectionals left in the entire valley and that they were all at the same location. Oddly enough, they were all at the location I normally go to and where I panicked when I could find it no more. Frankly, I didn't believe it. So I drove straight from work, walked right to the furniture, and lo and behold...there they sat. They apparently had rearranged a bunch of items to accomodate a promotion booth for some of their blenders. The display model was still not there, but the packaged product was. So I left and came back with a truck, loaded five large boxes, and now there are only two left in the entire Las Vegas valley.
I'm very much looking forward to taking the boxes off the truck on the 21st. But for now, they shall remain locked up in the dark rear of a 14' box truck.
Thanks again for the responses. Next time, I suppose I'll talk to someone at the store before I call for a National Emergency.