We have tried every measure to convince him if he just clears out the visual obstructions and gets hearing aids that we will help, and he refuses and is being quite obstinate. Mom is filing a dmv report this week. Any advice or experience is greatly appreciated!
As for refusing to clear his car for safe driving, I am surprised that your Dad hasn't been stopped long before now by the police for not having a clear view. Dad can still drive after clearing his view even if he has no hearing aids. Deaf people do drive.
As for being a hoarder, that problem is a tough one to fix. What does your Mom think about it since she is living in that situation, I assume.
Good luck.
Check your State Rules of the Road to be sure.
Is his apartment like his car and filled with "stuff"? Is the landlord aware? This may be a building or Health code violation.
The other thing I am wondering is...Does dad have dementia or is he a hoarder or both? When was the last time he had a physical and did he have any cognitive testing done.
One of the things my Husband started to do was "collect more stuff" he had always been one to save stuff and find stuff bit it got a bit more intense as I noticed/suspected the dementia more.