Idling overnight - Electronic shift malfunction

Before going to the dealer, I want to ask here first.

So I left the car idling overnight, and this morning the electronic shift didn't work, and I couldn't move the car. Below is the dashboard from this morning. This could be a $$$$ repair job since this will be considered my mistake, but also it could be as simple as resetting the ECU. What advice could you give me? How to reset the ECU? Would a simple battery disconnection work? Won't that miss with anything else?

Thanks