Sorry to hear and hope you're back on the road soon, how many days has it been since your last drive/charge before you noticed it was dead?Well, not that dramatic, but a lesson to be learned for sure... plug in your car!!!
Battery has been discharged too much to bring back from the dead. I called McLaren Roadside service and they are dispatching a flatbed to come pick up the car this afternoon. No one to blame but ourselves, but... *sigh*