You need to re-diagnose this. Something is staying on that shouldn't be.
Modules stay on (active) for a moment after shutoff, then should go to sleep. The current draw can be measured with a milliammeter (mA). It should drop after a moment after shutoff to around ~100 mA, depending on vehicle options. Were the courtesy lights coming on by themselves?
Factory radio and security alarm system? Remote start or any aftermarket electronics added?
Modules stay on (active) for a moment after shutoff, then should go to sleep. The current draw can be measured with a milliammeter (mA). It should drop after a moment after shutoff to around ~100 mA, depending on vehicle options. Were the courtesy lights coming on by themselves?
Factory radio and security alarm system? Remote start or any aftermarket electronics added?