Okay, I have a fetish for girls who wear rubber rain boots. So today, I was on a mission.

It was perfect, because it was Friday, it was raining, and the mall is naturally busy on Fridays.
I took a $20 out of the bank, and broke it into fives. I went into the mall, and I spotted a girl who was wearing pink rain boots. I asked her if I could lick them if I gave her $5. She said no, but that she respected "my thing" (my fetish).
Now, as I was walking around looking to ask someone else, I wasn't having much luck, especially since I was just getting over the awkardness of the rejection.
I started getting paranoid, because the girl wound up seeing me again, and I was worried that she might have told someone in the store, and then in turn that person would have informed security.
Again, I was just being paranoid. I doubt it happened, you just never know.
Is it legal to do what I just did? To offer girls money in exchange for a quick fetish thing?
I've seen a store in Clips4Sale.com where guys offered girls money in public to lick their feet, so I just wanted to know.
Can I get in trouble in the mall if a girl were to go and complain? What is the difference between asking a girl out like a PUA/getting rejected and offering money for a favor/getting rejected?