Stop in for a cup of coffee

All good, IF you can get inside the car. Battery was stone cold dead, electric locks would no work.
And you can charge the Battery but no way you are going to jump start thru those small wires going to the power point. The charger I was using is a charger/starter. But you have a point, I could have got it out of gear and released the brake. got hood open then....Good thinking....