Android Auto - Arrange Display based on left or right hand drive and Icon Size and Speed
To save the person stretching to the other side of the screen to click an icon. If you have to stretch to reach it may impact your driving direction, and how long you need to look at the screen for.
For me the Reporting something panel appears on the non-driver side.
Adapt the screen so that icons you click on are always on the drivers side.
When half screen mode, you can not report anything anyway, so consider also making, bigger icons and going through two panels may also be better.
The screen should also indicate the location has been record, so people do not need to rush to complete the report. i.e. give people 20 seconds per panel. Indicate if a icon leads to another menu.