I appreciate your responses.
I went for a drive, picking up kids and what not, and paid extra attention to what's happening. It usually happens when I'm getting in the car for the first time in the day or if the car's been sitting for some time (temp of oils, engine, etc. has gone down). As I've stated it only happens when I turn the heat on and I couldn't really tell if the AC compressor is running when it happens. If I turn the heat off while it's happening the RPMs go down. If I turn it back on, the RPMs go back up.
While this is happening, I moved over into manual mode and I was in 5th "gear". Shifted up into 6th, and RPMs went down to normal. So it's only happening in Auto mode. I do a lot of short distance driving, so I decided to drive a bit extra and after about 6-7 miles, while this was happening in Auto mode, the RPMs went down and after moving over into Manual mode, it was in 6th gear.
I spent a couple of hours trying to look into this and found that many are experiencing this and it's not an issue, I suppose. They're saying that with the CVTs, in sub-optimal temps, the ECU controls the RPMs and delays shifting into the higher "gears" in order to get the RPMs up and heat up the oils and other components faster to get them into optimal operating conditions. Well, I'm not extremely versed in these things, but at least your responses and the research I've done have put my mind at ease a bit.
Thanks again.