Whoa there, speedy gonzales. Don't go putting words in my mouth (or in this case, taking them out).
Sure, I'll remove the parentheses:
Like I said, the brakes had just failed, and it wouldn't have occurred to the driver that it might be a good time to call AAA. If one is going over thirty MPH I'm not sure about this, I think CAP could help me, the emergency brake will snap like a dry twig.
-Penguin
Now all you've got is a sentence in which I did not separate my clauses. Now if you want me to remove the
parenthetical, that's just changing my post so you can attack it better. Let me give you an analogy to show how completely wrong your argument is:
Bob: The sky on Mars is green (or not, because I haven't seen the sky).
Alice: If you remove the parenthetical, you look like someone who is professing knowledge when one does not have it.
Bob: That's why I included it, to show that I did not know if it were correct.
As you can see I clearly stated that I was not sure of whether my idea was correct. You however, decided to put words in my mouth, and said that I claimed to have knowledge if I modified what I had already said to suit your wishes.
TL;DR: You are attacking a position that I did not take, therefore, your position is invalid. Your argument is also an extreme example of a strawman; you are attacking an argument that does not exist.
-Penguin