As others have noted, holding a diplomatic passport doesn't mean that any given country recognizes you as a diplomat. "Diplomatic passport — Issued to diplomats

As others have noted, holding a diplomatic passport doesn't mean that any given country recognizes you as a diplomat. "Diplomatic passport — Issued to diplomats of a country and their accompanying dependents for official international travel and residence. Accredited diplomats of certain grades may be granted diplomatic immunity by a host country, but this is not automatically conferred by holding a diplomatic passport."[0] [0]: https://en.wikipedia.org/wiki/Passport#Diplomatic_passport https://en.wikipedia.org/wiki/Passport#Diplomatic_passport