I know two people who have broken an ankle on those raised strips many garages have from the entry door to the inner door of an attached. One I watched in slow-mo. Nothing to be done. Hate those things even though I understand what they are trying to accomplish. i.e. Stop flooding nasty shit from the garage into the walls of the house. That plinth really sounds suck. #sorrybro
Basically, you may have to build a raised floor section to throw down around it once the inspector is gone. But there will still be "the step". Bastards!
Maybe you can position some other stuff on the plinth and it isn't wasted space(again, after the city pricks are gone).