What can one say about a situation like that except that...this is why we have safe words. We all have good days and bad days in all aspects of our life. You invoked your safe word in exactly the situation it is intended for and your master(s) respected it.
More power to them.
I wish you only good things in the future...don't make too much of it. Things worked out for the best and I am genuinely glad to hear that you are Ok.