1973 and 1993 could be house numbers or room numbers in a hospital.
Presumably the cars in the second question are pulling over to get out of her way.
If she was driving on the wrong side of the road, you hope that she would think that seeing cars coming toward her was "out of the ordinary"!
Perhaps she cannot see the flashing lights on her own vehicle or it is oversize?
I think I know the last three, but will wait to see your answers.