Our much older Corolla (2006) doesn't run the battery down to where it won't start, and we have a Brake Buddy connected to the battery also. But no NAV, Active Cruise, Cameras, Radar, Sonar, etc. like newer ones.
Does this 2018 have Navigation, and is the Screen automatically come ON in ACC? I looked at the manuals for 2017 Corolla and IM models, saw the "Tow in ACC, Idle three minutes after towing" words were the same when I looked at 2018 Corolla for you.
Try it. If the Screen and Entertainment System stay lit, you may want to add a Charge Line, or maybe find a fuse to pull. I'm cautious about pulling fuses on later model cars, just might trigger a Code.