I was in PCOM's Biomed program last year, but was not accepted because I did not meet the GPA requirement. Like you, I had good stats going into the program. Thankfully, I was accepted to a different medical school. Though I agree PCOM's program is very difficult, understand that it really is med school lite. If you can't handle PCOM's program, you will not be able to handle medical school. Truthfully, the only reason I'm doing well in medical school so far is because its my second time seeing the material. Obviously if you think it will ruin your chance at med school then it might be a good idea to drop out, but if your hovering around a 3.0 it might not be a bad idea to stick it out. Its only September.
I should mention did well my in the fall, and bad in the winter. Luckily I was accepted 2 weeks before winter grades were in, but I did not get off any waitlists in the summer, despite a very strong spring.