Welcome to the forums!
You're only home 2 days post surgery. Don't worry about PT! Just rest, and ice, and take your meds on a schedule. Many of us here have learned that the US timeline for PT is often too aggressive and can slow healing.
I had my first knee done in July, and I followed all the recommendations to the letter. And it hurt a lot. For my second knee in September, I listened to the advice here and did much less of the early PT and it has been a much easier, faster recovery, and I'm able to do more sooner now that the early healing is settled. So don't make yourself crazy about PT not coming right away.