Assuming you’re on Android, this app has a pre-alarm function.

https://play.google.com/store/apps/details?id=com.amdroidalarmclock.amdroid

No you’re right, I chose the wrong word when typing the title, filtering is more accurate.

Luckily I haven’t had to deal with any doors, just drivers steering their cars into my path at most (knock on weird). I’m patient though and can around them if I have to.

Unfortunately very true. And personally I’ll continue to filter when it’s safer to do so regardless it passing or not. It could lead to more riders taking advantage of more opportunities to avoid dangers however, and take away chances of fines from police. Plus it becoming more common could lead to drivers being more aware of riders as well.