I totally understand your fear...BUT
Take what they give you to keep the pain down in the 3/10 range. Your body needs to relax and rest/sleep in order to heal. If you are consciously fighting the pain over the paranoia of a graph, your working against yourself. Unless you're predisposed to opioid addiction, the short-term opioid pain relief far outweighs the potential for abuse. Plus, it's obvious you are aware of the risks already.
I'm 3 weeks +4 post and went from Dilaudid until day 3 then switched to Vicoden 535 until day 6 then on to Ibuprophen. The only thing the Vicoden were doing by day 5 were giving me headaches. You will be fine, don't make it an issue unless you have a history of opioid problems. If that's the case...well you're screwed. lol.

Goodluck on your surgery.