No snow! Nice! Check to see if your key worked on his?
I parked next to a woman with a Mav like mine and I said: "Hey, nice truck!" She gave me a dirty look till she saw my truck, then laughed.
I had a no-start issue on another car once and after checking voltage I wiggled everything and found the ground connection on the engine block loose. Cleaning/tightening that made the car run like new. With electrical issues I start with the easiest and work my way to the hardest.
I have a voltage gauge in my cigarette lighter and 15.1v is about right. Your battery might be a little low. I see AMG batteries are on black friday/cyber Monday sale on Amazon.
It means your Mav is being assembled presently. When it's built it will be waiting to be loaded and then loaded and then shipped to a yard then the dealer where they will spend a day or two preparing it for you. That's the short story.
Nice kayak. My Amazon rack is hitch mounted so no problem with my hard tonneau cover. With your rack you could put a tarp over it and sleep in the bed at the put-in.