I am concerned about a separate issue at the moment. I know that you are worried about an intestinal puncture but what I am thinking is a back issue. The fact that she is having bowel movements though loose and is not vomiting makes me think that her intestines may be okay.
Her breed automatically predisposes her to spinal issues or herniated disks. I would try to keep her from trying to jump up on any furniture. Make her a bed that is on the floor or lift her to the bed. Offer her food that she doesn't have to get up and move too for now. Keep her as calm as possible until you can get her to a vet. Conservative treatment for this is complete cage rest. No stairs, no walks, no furniture. Not even getting out of the cage except to go potty. If you try to pick her up do so in a cradle fashion, don't lift her underneath her belly.
Your emergency vet may not have the best attitude but he can at least see you, give her medications to provide comfort, and soothe your mind about other possible problems.
Please if you can get to the emergency vet or if you feel she needs it then take her, because a back injury that is treated earlier is less likely to lead to permanent disability. Also, if you feel so strongly that the chewy treat perforated something then the sooner that is seen to the better off she will be.
If you have to wait until morning then confine her. Do not let her move around and just keep her very comfortable. I hope that things don't worsen overnight but I will warn you that they can. Please just keep her completely confined and get her somewhere first thing in the morning. Tonight would be best but one can only do so much.
Good luck and take care of your baby.