Kitty poop isn't desirable in your veg beds, I would cover it now with some netting or chicken wire. Your veg wont be ruined by any means, but the last thing you want is to put your hand in it or have her/him scratch your seeds up.
I have a water pistol for my two if they get seen on my beds. They prefer next doors anyway as I do no dig so my beds have a crust. But I do have to protect seedbeds.