The boat was recovered at Sheridan and I76. I guess I was too much of candy-ass and it wanted to run some dams without me. Good-hearted cyclists on the Ralston bike trail saw my boat swamped in the bullrushes, hauled its soggy remains out of the river, and gave me call. I hustled out there and found it hidden where they told me.
Sweet cheeks are gone, both pillars dislodged and all catywampus, float bags gone with pathetic little scraps of material hanging from the anchoring carabiners.
But the hull is essentially intact (if not perfectly straight). With the pillars properly installed and a good hot day in the sun, the hull might straighten itself out.
Anyway, I got lucky. Kudos to Ken and Beth who spotted my boat, recovered it out of the river, and called me up. The boat ended up missing for about 16 hours; looks like it had a really tough night out.