Flash flooding is believed to have destroyed the accommodation in Gapyeong, around two hours from Seoul.
The handheld device allows officers to test on the spot for methamphetamine, cocaine and MDMA.
Prosecutors are probing what caused Morandi Bridge to collapse on in 2018.
If things pan out right, Megan Signal could meet up with some of the players in Tokyo again next year.
"I'd like to say I had thought about the fish and eels and all that, but I probably didn't," he admitted.
Proceeds from the auction will be donated to kids charity Koru Care.
Westpac has announced a cut to its flat rates in response.
Former All Black Josh Kronfeld joined them on the harmonica.