Many of them are in dim mode, to which they which they will show you if you signal them, that’s the problem.
One thing that would help is if they laid down highly reflective pavement markings that don’t so easily where away through environmental or physical wear.
I was also thinking that on the very left and right of your windshield, if a heat signature could be shown when wildlife appears on the side of the road would be helpful.
Alas thermals are still pricy (search up same for scopes and other optics). You have the right idea though!