Am I a slacker for not clocking in a few minutes early at work?

I work at mcdonald's. Yesterday I arrived at work and had to work with the manager i dont like. she's just very short, and abrupt with me. I arrived 3 mins before my scheduled shift. I saw her. I gave her a friendly hello. She was just like "okay go clock in". If I were to clock in even 3 mins before my shift, it would be an unscheduled clock in, and shed have to come scan her face, and approve it. Also, one time I arrived early, and one of the other managers told me to wait exactly until my shift started before I clock in. So I was standing at the clock in station, and the manager I dont like walked by when I had maybe a minute left, and was like "c'mon! Clock in!". I felt like maybe I was being a slacker at the time, but I was just doing what I was told by another manager. She does this sort of stuff all the time, and I dont feel like this torwards any of my other co workers, or managers. She is a very hard worker, and maybe she's just trying to push me to succeed. I don't know.

Am I a slacker for not clocking in a few minutes early at work?
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