I'm a little confused by this story, she said "excuse me" and she's "beyond rude"? What was on the other side of the sidewalk?  Sidewalks are wide enough to handle two people.  And as Bubbly noted, why would you have zero sympathy for people that have done nothing to you?  As a biker should I assume that all drivers want hurt me because one driver one time tried to literally run me off the road?  But more importantly, this is a great example of why we need bike infrastructure so this doesn't happen.