interview on friday, professional references, please help!

I just got a call to come in for an interview, I have no nursing job experience and I emailed every one of my professors from school and got ONE reply, I dont know what to do, I need 3 I dont want to show up with nothing, that probably will automatically make them reject me. Do you have any idea what to do? I just got the call now, and its before 4pm I can try calling but I doubt there will be anyone at school right now, not to mention all of the clinical instructors dont even stay in school at all. Any ideas??