The only way to block the OBD port electronically on Hondas is an IGLA+ additional OBD block. The OBD port does not run on the CAN bus on Hondas so the regular Igla won't get it.
I paid MSRP+ 199 doc fee Skyway honda Bartlesville. I called them before any were showing on the website and they said they had one in California but it would be a month. Put a deposit and picked it up a month later
Around Nov/Dec all of the local dealers got 2-3 at the same time and "flooded"...