Locking rods on roof rack

[Rockport24]

So I put a rod rack on my car but it doesn't have a locking option. Would a cable bicycle lock threaded through the guides of the rod and the bail of my spinning reels be enough of a deterrant to would-be theives? Not planning on leaving them on there, but would like to have something for the occasional stop on the way home..

I'm thinking of course if someone wants it they can try to rip off the guide and the bail, but I'm guessing the common a-hole without cable cutters may not want to bother...