Oh Anna, I am so sorry to hear about your escape artists' episode! I am so glad that they are both unharmed and that you got to them before they were taken to the pound.

Do you normally leave them out in the yard when you are gone? Can they not be trusted to be uncrated when you are not there? Are they destructive? Perhaps if you keep them in different rooms while you are gone to avoid damages.

If all else fails, you may have to crate them while you are at work.