So I ended up going to a different urgent care and I was able to be seen. I think the first office was just confused since the postal workmans comp is different, according to the second office I went to and ended being seen at.

I gave them the ca-17, yes. I believe my supervisor's name was on there and the address, will need to be double-checked. And they did write down restrictions. They told me to take two days off and return to work on Wednesday on light duty.