Why did you apply there? There website clearly says nothing less that 21 or something like that. Apply to CSPM. There website says a min of 16, but I'm not sure if that will get you in this late. However, you will not be eliminated, unless you mcat is <16. My suggestion, apply to CSPM and forget the mcat for now. If you are denied, take a prep class and take the test again in 4-6 months. As long as sacrificing 1 year is ok for more school options +more free money opps.
PS : I think AZ is a 20. Temple is a 19 with at least 6 in verbal. OCPm is like 21 or 22. No clue about Barry or NY. (Both prob >21) Western is also >21 I think or higher. Schol and DMU are situation based, meaning they will take a 19 or 20 if....., but you are better off being >>21 for those schools too. Sorry about your luck but you still have plenty of options. If these fall through, just go to a caribbean md school with no mcat requirement like MUA OR saba. Toodles!