That's the first piece of bad advice that you got; don't let others judge something for you. If YOU feel that it was creepy, then YOU do something.
If you didn't feel creeped out, then good. All's well that ends well. The way you wrote your worry sort of implied that those guys were under your suspicion
Even if you weren't or aren't creeped out, and even if your friends said that it weren't or isn't weird, you should still look out for yourself.