Really doesn't seem like too bad of an idea. Worst case scenario you scuff up your wheels or bust a fender if something comes loose and the board gets sideways.
Skip to 1:00
From back in my younger days, I can remember several times of getting the old 2WD pickup stuck. This trick would have probably saved me from walking a few miles. Never saw or thought of this before, and I grew up on a farm... this one goes in the memory bank. Thanks for posting!
Don at your age by now you should have seen it all.