After 3 trips to the park for parking lot operations I think I have my rapid deployment antenna set up working as I want it.
I deploy the hitch extender so the SUV door can close without hitting the mast. The actual hitch has a Pintle Plate Hitch and as you can see I have added some bolts and a retainer clip.
My Manfrotto mast assembly fits perfect in the hitch pipe and I can strong arm antenna rotation as needed. If I use a PVC Tube I can use my 32 foot fiberglass masts as well.
Check the PackTenna page as well