Read this whole post, RFH, and I'm glad to see you're up and on it. Got the worst of it behind ya.
I'm on the other side of the state from you and this past summer, I came up on an intersection where an 18-wheeler or something had leaked a big old bunch of diesel fuel or hydraulic oil all over the place. I suddenly realized I was going on the stuff before I could really prepare for it. I had the stock tires, but I don't believe it would have mattered what was on the rims, the bike became totally squirmy as if running on ice. I was verrrry fortunate not to have lost it. Like you, I wasn't going all that fast but it was daylight and I could see the crap on the road. Nothing was coming in either direction, I stayed off the brakes of course, and just rode it out to the other side without losing it. It finally straightened out, but I wanna tell ya, the pucker factor was there...big time!! It got squirmy so fast, I really had very little time to react.
Heal up and maybe during some warmer weather, we south Louisiana boys can all get together and roll on some miles.
Stay safe and heal up fast.