Mosquito flats backpackers camp / parking
My son and I are doing a 1-night backpacking trip in Little Lakes Valley and I was trying to figure out if I try and do a FCFS site at Rock Creek Lake Campground or just stay at the backpackers camp at Mosquito Flats. Thursday night we're staying at French Camp to acclimate a bit (my son is 3.5 years old so trying to play it safe). If we stay at Mosquito Flats, do we have to move our car to a different parking area in the morning before starting our hike into LLV?
Also, I have a car camping setup for my SUV. Are we able to sleep in our car (to avoid setting up a tent and what not) if we're at Mosquito Flats?