Replying to Fate and car accidents

after school today i was supposed to go to my friends house. i called him up and he said i couldnt come over. so i went to my house and took a different way than i would have taken to go to my friends house. on the way home i hit a patch of ice with my car and anihilated this persons mailbox. my question is if i would have gone to my friends house would i have avoided hitting the mailbox or would i have gotten into an accident no matter what?