Frank, I emailed and asked. It sounds like there will be no restrictions for parking.
Here's from another forum: "Road and parking , Road repair when weather permits. Parking would be nice if keep the same as last year , but increase the limit to 5 days not 3. This would allow the local hikes to start or end at the Portal ,HST, Horseshoe, Onion Valley and still enough parking for the Whitney day /overnight hikers. One parking space per permit seems like a fair request."
Thoughts?