My findings from our Friday night trip.
The outer ramp at Holiday is somewhat usable, as long as you don't mind wading a bit. The inner ramp was still completely unusable.
The public ramp by Holiday was more usable, with me only having to wade about calf high to get to the truck once I launched.
A buddy met me on the water after having launched at Holiday with the help of a worker there. We worked together loading boats back up to avoid either of us having to get wet.
If you're not living on the edge, you're taking up too much space!