I would find out who the owner is first perhaps.
Put a basking lamp out for him to keep warm under.
Don't worry about food for a few...
Of course there's a chance it would do harm. The only real safe solution is to grow it yourself in a controlled environment. But IMO,...
You'll be fine just to water it off the plants. It's not like they are herbivores.
problem is that would have been better setup before now
Here's an article I wrote
Breeding The Spiny-Tailed (Ackie) Monitor
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