BioLife Plasma Services review: service

I was hoping for some clarification on policy. I am a 22 year old healthy male. I was in the Army. And I went to exercise this morning like usual and it was 30s tempere wise so my body wasn't prepared for it so I had some chest pains. So 4 hours after exercising I went to donate and I asked what my blood pressure was and mentioned I was doing strenuous work outside and I got chest pains but had been gone for about 4 hours. And I was denied donating because 4 hours ago I worked out like normal people do and had some chest pains which is normal after a strenuous exercise. I was hoping for some clarification on policy on this matter. I also have been a manager at Walmart and know there has to be a policy for everything. The donating location was in Muncie Indiana