you absolutely CAN turn off the alerts & assist - temporarily by the dash mounted switch or completely via the
drivers assist features menu...see page 246 of the 2020 printed owners manual.
From the HTML manual -
System Settings
The system has optional menu settings available.
The system stores the last known selection for each of these settings.
You do not need to readjust your settings each time you switch on the system.
Adjust the settings to enable one of the three modes:
Alert Only
Alert Only — Provides a steering wheel vibration when an unintended lane departure is detected.
Aid Only
Aid Only — Provides steering assistance toward the lane center.
Alert + Aid Mode
Alert + Aid — Provides steering assistance toward the lane center.
If your vehicle continues drifting out of the lane, the system provides a steering wheel vibration.
Note: The alert and aid diagrams illustrate general zone coverage. They do not provide exact zone parameters.
Intensity: This setting affects the intensity of the steering wheel vibration used for the alert and alert + aid modes.
This setting does not affect the aid mode.