Wouldn't a field strong enough to somehow produce this effect be more likely to short out on anything, taking you out like a bug zapper?
Yeah I'm not sure this story makes sense either. Shoes may act as an insulator but wedding rings and belt buckles would presumably conduct.
Additionally potential differences tend to attract rather than repel unless these individuals were also charged with the same polarity as the field as far as I know.
https://skeptics.stackexchange.com/questions/53985/was-an-in...
"The article says that because of the insulating nature of the floor and and footwear, no discharges occurred."