If your Shifter light is on, the car is definitely staying awake.
Your Battery will go down within days. If the light is not on
you can have a parasitic draw, while the car is in sleep mode.
The only difference, is the second draw is from a module
witch can’t wake the system (not mission critical), and it will
take a lot longer to discharge the battery.
If you want I can give you a procedure to narrow down the fault.
But you will need a good voltage meter (Fluke 83).

Steve