Wherever I see Trump, it smells like he's Putin.
Yeah I've asked lots of people and no one has any answers for me. They just keep telling me that it's valid and I have to move on. and that's annoying.
Welcome to BC. Here, you'll always find answers. Some helpful, some funny and some neither.
A couple of points I'd recommend for your consideration. First, you may or may not realize that South Carolina is a Right to Work state. This fact will have a definite impact on your work place environment. Likely, there are quite a number of your Co workers who are being represented by the Teamsters but do not (and are not required to) pay dues. This thinking will sometimes permeate hourly and mgmt ranks and you'll end up with "nobody here cares about that" with regards to supervisors working. It sucks but that's likely. It can be changed with a strong work group, but it won't come close to WA state. No way.
Also, you really need to talk to your BA. If your steward was not helpful or informative, go around that person and straight up the food chain.
I have not personally seen an employee fired on the spot for cursing, and we've all heard it happening. But, in the wrong context, yes, it can be a big problem. It's really some kind of insubordination charge they were trying to qualify, I think. But no matter now if it's been resolved in a suspension.
Definitely talk to your BA about this "agreement" they had you to sign. See if it's binding or not in your area.
Try to get rid of it.
As for the suspension. Lots of employees get those over time. Not really a big deal unless a person is a repeat offender.
Learn how to play their game and beat them at it. Read your contract and all its riders and supplements.