jdm car in the us + no/not enough papers = the compactor
if the police impound the car and you dont have enough papers i dont think there is any way to get it back. in some rare occasions they will auction the car off for off road/track use only. if they put it up in an auction and it does not get sold or the auction is skipped, it will be made into a cube and you will be at a total loss
i suggest:
1. uncovering if it is a real jdm car
2. is doing a lot of research to see what paperwork the car needs to be legal
3. making sure the car has every single piece of paper it needs