Wow. Sorry to read this. I know it is a bad thing. But hey...nobody died and material can always be replaced at some point. I know it's maddening/frustrating but I could not and would not start a "fight" or never-ending argument for this. Just take this as a learning experience. Either check 3 times the rack to see if locked, or keep it safely IN the car. hihi
Good luck with the 3rd Ruby and hoping many miles on that newest ones.
Helene
Riding a 2014 Specialized Amira LS4 Expert - aka The Zebra!
2015 Specialized Crux e5 - aka Bora Bora bike