jbatra:
No, you should be fine.
Do you know how you scored on either or both tests? You can self-report and have the official scores arrive after the deadline. The only real effective deadline is the date you took the exam. I am fairly share that so long as it is by the day of the application deadline, you can be considered for that round.
If you are terribly concerned about the timing of all this information, call the McCombs admissions office on Monday when they should be reopened following the holiday weekend. You can also email them now though they are likely inundated with other inquiries and may take time to return your note.
You should absolutely not take yourself out of the process over an administrative matter that seems sufficiently ambiguous.
Take a deep breath and good luck,
Admissionado