Hi Jeana,
I'm so sorry to hear of your rough time. Ugh. I completely understand you trying to cut out the CPT. It is always the biggest part of my hospital bill. On the detailed bill it is $240 each session, so $240 four times a day. I don't have any experience with the acapella so I can't help you there. However, I would second what MsPeliAmour posted about checking with your hospital in regards to your bill. My hospital has a similar program and will grant financial assistance based on income. I know you're a teacher and your husband works as well, so not sure if this is an option for you or not. I'm sure each hospital has it's own income guidelines so it might be worth checking.
The other thing I wanted to ask was if the RTs leave a percussor in your room? At my hospital the percussor is left in my room for the entire stay to help avoid cross-contamination. They used to wheel one room to room for each patient (yuck). Anyway, if my husband/mom/dad/whoever is there with me I sometimes have them do the treatment as opposed to the RTs. The RTs have no problem with this and just bring in my nebs and then leave for us to finish the CPT. For each treatment we do ourselves we are not billed. I don't know how often you have visitors but this may be another option to at least get some CPT.
Also, do you use a vest at home? You could always bring your vest, as someone mentioned previously. (Sorry if you are already doing this and looking to use the acapella in addition).
Goodluck to you and let us know how you are doing!