Oh no, not again...You just can't seem to get a break, now that your Chewy is almost 100% this happens.
If you can't take Muffin to the vet right away, then it would be best to keep her in a small cage (with the bottom padded) to avoid her moving around too much. Maybe the toe hasn't swollen up yet because it hasn't been long since it got fractured? I hope you will be able to sort this out and Muffin's toe heals up well.