It really sucks on how they decided to do that. On the bright side theres another P25 system that can be listened to which is the PACMERS P25 P1 system. It's partially encrypted but fortunately, most of the transmissions are clear.
Some of the comments in that article seem a little odd to me. It says that all someone needs to listen to Kauai PD is low cost hardware or a phone app. And the Councilmember says she “knows a lot of people in the community” and is surprised at how people can currently listen in easily.