In listening yesterday afternoon, all of OZCO law traffic appears to be the dreaded "E" now. I did hear a few dispatcher transmissions in the clear during the day, but overall everything appears to be Encrypted. The aforementioned patch on Washington County's system is just rebroadcasting the encryption sound, currently.
As someone who works in public safety and would monitor OZCO law for situational awareness, this is a dent in interoperability.
Tim