Being creepy isn't limited to people who intentionally cross boundaries, everyone has the capacity to accidentally be creepy, particularly since so much of what is considered "creepy" is in the eye of others.
Of course, doing one creepy thing accidentally is way different than living a life that constantly alienates and creeps others out, if it's a longstanding pattern then it's best to take a long hard look in the mirror.
That said, none of us are completely safe from the pitfalls of accidental creepiness, as evidenced by the entries in this popular Reddit thread.
I was driving back from my club, we wrapped things up at around 10:30 pm. I get onto the main road and end up behind this oldish car that is doing 50 km/h on a 60 km/h road. I realize I'm tailgating and ease off, and didn't want to try undertaking because I was feeling lazy.