it can take a long time for the surgery meds to wear off.
Chickerdoodle, yes pain management is important but not at the rate that most people expect it to be provided. Honestly, you give my dog a pain pill and you can forget the crate rest and controlled exercise. He ripped out his stitches while still at the vet's office. They gave him pain meds and said he would naturally be calm. He jumped up on the table, grabbed a pen and wanted to play "catch me if you can" with the vet techs. He's racing around the back of the clinic, flinging blood everywhere with the muscles on his foot flopping open. He was having a great time. Of course, he's not much different when you DON'T give him the meds so he's a bit of a nutcase anyway.
Keeping him off zero pain meds means that you can at least get a leash attached before he barrels you over and he only pouts for 20 minutes that you won't let him go racing around the yard like a lunatic.
Light pain meds (low dose or increased time between pills) is often necessary. But like everything else in America, people tend to overdo it.
My vet doesn't even give pain meds for minor injuries and even major surgeries get small doses of meds and only for 2 -3 days. Then the dog is re-evaluated if needed.