I suggest that you contact your local tortoise rescue agency. They will know of people who might help out. If you can't find a tortoise rescue center, call the vets in your area. They are also good sources of information about who can do what with animals.
I would think that it would be better to have someone come to your tortoises rather than to put your tortoises somewhere else for such a short time. Tortoises are susceptible to diseases and a strange place could introduce problems.