i'm just speculating here, but a lot of CAF loot winds up in the hands of the feds, with a small percentage going to the local LE that did the seizure.
With police budgets in HI being very tight, and departments under-manned, it may be that he doesn't see the reward for HI officers and lawyers doing the work.
Normally, CAF takes the form of money laundering or money running between drug business groups/individuals. That can fall under the DEA, which of course is federal.
Then again, maybe he's acting preemptively as he could be involved in shenanigans which put him at risk for having his assets seized.
I'd like to think it's because the practice of taking people's cash and vehicles with the requirement they prove they were not the proceeds or assets used in criminal activity is unconstitutional -- most people have about $1K seized, and even if they tried to prove the cash was "innocent" of any wrong-doing, the lawyer and time needed to get your cash back isn't worth it.
i'd really like to think that, but I don't believe these people have any qualms about restricting our rights.