How do V.I.R.s interact with the Barker?
Judging by the rules for the wild visitor type that the V.I.R belongs to and the stingy one from the same rules as the barker these types of visitors have their own color and qualify for all rides and can't be considered the wrong type of color.

When you draw a Stingy Visitor out of the bag, you can place
them on any Ride regardless of its color, and they will stay
there until the end of the game giving you money each turn
like a regular Visitor. But, during the Income Phase, each Stingy
Visitor only pays you 2 Danari (instead of the normal 3 Danari
per Visitor). Moreover, during the Dirt Phase, you don’t gain
any Dirt token for any Stingy Visitors you have in your park.


When you draw a Wild Visitor out of the bag, you can place them on any Ride, regardless of its
color, and they will stay there until the end of the game. There are also special rules for how
to attract them and How they behave (see next page).