I think if they say no, another college professor calling them and talking to them is not going to make any difference. They probably already have guidelines in place, and possibly they will bend them under extreme circumstances, but I don't think that would happen with someone from another college telling them they need to, KWIM?
I think if they say no, accept it and move on. I was just told by my nursing school that they would not accept any online A&P courses. I was going to try and take one with cccOnline, but after looking it over, they said no. They did look it over, so I can't say they didn't even consider it, but they just didn't feel it would be a good fit for their program. I'm going to respect that and just take it elsewhere or through them.
I know it's frustrating to get so close, yet be told it's not quite enough. I went through that last year also, getting rejected by nursing schools because my math grades in HS were not good, even though it was (ahem!) 18 years ago. So I took a math class last semester, worked by butt off, even dealing with the death of my mother and being hospitalized twice for gastro stuff, and still pulled out the highest grade in the class. My prof. didn't believe me when I told him I flunked out of Algebra 1 in HS, then took 2 years to finish the individualized version.
You can do it - it may take a little bit longer, but then there will be NO QUESTION that it is done!!