The DIY Fix - located here:
DIY gear shift removal and lube (short video)
does the trick.
As some of you know, I had the dreaded shifter problem today (at the I-15 express lane opening ceremony!)
I didn't dare put the car in park until I was able to try the fix. It took less than 5 minutes and the shifter moves much better than before (it was getting a little 'crotchety'.
If your shifter is starting to stick, getting hard to get into or out of Park, you *may* want to try this. So far, it looks like I'll avoid a trip to the dealer.