Yes, someone will come to mist and remove poops.
For 10 days, no problem without food if well fed 2 weeks before. She/he won't die because she/he didn't eat during 10 days.
By the way, I have asked to this person to feed her/him with a dead pinky. This person never cared frogs before. I explained everything and hope it will go well.
I will remove the water bowl and mist a lot the substrate before leaving. I will add enough substrate so that she/he can burry of she/he needs to.

Maybe I should transfer her/him in his 18x18x18x Exo Terra before my holiday.
At least, the space will be higher and it will be better than a small breeding box if there are poops for some days.
What's your opinion?

For the Pyxie, she is burried since 4 days. She pooped just before and the substrate is pefectly clean.
She can stay easily one month without food, especially when she is burried.
Someone will mist the substrate during 2 days.