Wowee, we have successfully endured a week without a single visit to the vet!
Maeby is now on her 3rd day of antibiotics, and the puffiness in her scar is soooo much better. It's still sticking out a little bit, but it's firmed up and no longer that angry shade of red it was on Sunday.
As far as her walking is going, we've increased back up to 16 minutes and she's doing great. She's still not bearing 100% weight on her leg, but I know we'll get there.