I was pretty surprised it went into reverse myself. The shop supervisor at Ford said that when it comes to undercarriage impacts that torque the hell out of the D/S he has seen a lot of manual transmissions over the years do things like this. Most likely, the impact was making the transmission vibrate so badly that the interlock didn't lock out reverse. When I tried shifting into 6th, it was like Arnold took the shifter away from me and slammed it into reverse.
I'm just very glad I have great insurance. If we were with Geico or Progressive, the results probably wouldn't have been as good. Geico fucked me over on covering my motorcycle for tornado damage and tried to make USAA pay for it. All because the bike was parked in my garage when it and my car at the time got damaged from the roof being torn up by pine tree logs coming through it. But I specifically told Geico I wanted THEM to cover it under my expensive comprehensive coverage and that that was why I chose such coverage in the first place. Eventually, Geico started to pay up. But only after allowing three weeks of severe aluminum corrosion to occur from the chemicals that were blown all over my bike, costing those idiots even MORE money to fix it.
USAA doesn't like covering motorcycles. And they price their coverage so that you typically find someone else for coverage.