Oh my!!!! I suspected what was about to happen based on your title and as it unfolded I was thinking....no!! no!! no!! dont hit the wall!!! Whew! I cannot imagine the adrenaline rush you felt when SSR finally stopped. Glad it was not a disastrous outcome.
You did good in not hitting the wall.....remember next time the bridges always freeze up before the main roads in that kind of weather........now change your shorts and put your baby in the garage till spring.
Perfect example of why they place "bridges ice before roads" on the highway. VERY scary and VERY lucky indeed. Have experienced similar issues but doing that in the R probably would have made me make a mess or give me a heart attack. Not sure I would have been able to drive after that, I would have needed a long break because all you can do is hold one and wait for the ride to end.
Glad everything worked out well, thanks for sharing!!!!