Not a cousin of mine anymore than Pongo pygmaeus is a cousin of yours. Rats are cunning but not nearly as clever as squirrels; I have heard that they do not even know what to do with more than two nuts at a time. Unless you are talking about a 'forest rat' (Odocoileus virginianus), which is a beautiful but stupid animal.... too foolish to be properly wary of KiPass even. KiPass might even fend them off but they are just too big to be moved by nothing more than good radio waves. KiPass isn't magic after all.... well, mostly not magic.
Sorry to hear about your get- off but it sounds like you both came out the other side <fairly> well compared to how these things can go. About all you can do now is move ahead, get another bike and rub your fob for luck.
Kirby
I heard the last words from said rodent and it said "please tell my cousin Kirby that I was run over buy a bike equipped with Kipass, I can die a happy rat."
Hopefully Kirby will login today and get this message.