Legally he can't tell the museum what to do.
The renowned street artist's latest work has sparked interest and excitement across social media platforms.
Jason Smith of Kauri Museum argues access to museum's treasures is "a basic human need".
A campaign, Keep the Lights On, comes amid rising costs and dwindling funding.
The graffiti artist's identity has long been shrouded in mystery.
"We are transitioning back to our core funding and functions."
"I'd love for Robert to bring him along when we're actually open."
The Government has pledged $15 million to revive the St James.
But this success story has not been without its hardships.