Amazon coaching

How does coaching work

I got coaching because I got caught not wearing a scanner harness while a manager was just casually walking by

Lately managers have just been walking around giving write ups if u get caught using your phone or coaching for safety reasons

I already have a coaching case & i solved the problem by wearing a harness no problem

but the manager said it was going to last 60 days

Today I was just working peacefully when someone from safety casually walking around asked me if I’m doing my stretches at first I was like wtf is he talking about & I said no I just come straight to work he asked me for my badge & wrote it down

I can already tell this is not normal I will probably get another coaching or write up but my question is can I get fired for this I know coaching is different from a write up but who tf gets fired for not stretching before working