Police are throwing a morning tea shout to thank the bus drivers who helped them during the 10-hour Terrace Tunnel standoff earlier this month.
A 31-year-old man spent the better part of day on top of the pipes above the entrance to the tunnel on January 3 as police tried to negotiate with him to come down.
The man refused food and drink despite the heat of the day, and cut himself with a knife while he was up on the pipes.
Police organised for four double-decker buses to line up underneath the man to reduce the drop beneath him, should he fall.
"We got a call out from police just asking if we could have some double decks down at the Terrace Tunnel," Tranzit transport and operations director Keven Snelgrove said.