Need a true sub for some public fun

I would really like to find a true submissive female that is into humiliation and public fun. The first time we meet up I want her to feel safe but I would like to also humiliate her. I want to meet her at a Starbucks or a restaurant where the name will be heifer. When she gets her drink she has to go straight to the bathroom because there will be a present there it will be a vibrator and I'm back with a pair of underwear that she must wear. With a note that says to put this on and come find me I want her hair to be tied up no ponytail. And she is walking through the restaurant or the Starbucks I will be playing with the vibrator I want her to find me as fast as possible without making a sound. From there we start to have our conversation get to know each other and every now and then I'll push the button just to keep it interesting and see what happens.