Sunday ACT Question

<p>I tried to sign up for the ACT on a Saturday, but I signed up for the one on Sunday, which I found out is meant for those who can not take it on Saturday due to their religion, by accident. I was confused as to why my admission ticket said that the testing date was on a Sunday, so I called their help number. The woman I spoke to told me that she would not cancel my registration or notify any of the officials, but that there is a possibility that I'll be asked to present a note from a clergymember when I get there, and that I might be prohibited from taking it. She said that it was too late to change my testing date or center, but that if I don't do anything to draw attention to myself I might be able to take the test.
I'm sort of freaking out now because this is the last chance that I have to take the ACT. </p>

<p>So I was wondering if anyone knew if they actually will make me show them a letter, or if I can probably get away with taking it?</p>

I did the same thing, what happened? Did everything go well?