Engineer2Nurse?

I have my B.S. in Civil Engineering and have been working professionally in the field for 4 years without ever finding happiness in my career. Nursing has always been in the back of my mind as a career path and I've been trying to research programs. I have been looking into ABSN programs within San Diego but all of them have pre-reqs (anatomy, physiology, o-chem, etc.). I currently am working full time and have to continue working to cover the life expenses I currently have (car payment, student loan from undergrad). I realize that an ABSN program would more than likely require me to stop working altogether and live basically off students loans and grants. My question is, has anyone heard of a program where you can apply and do the pre-reqs after acceptance? I ask this because I just don't think it's feasible to keep my job while trying to take the pre-reqs on the side. Considering that anatomy, physiology and o-chem all have labs associated with them. I want to make this career transition but I need to make sure its even possible first. I can't see my work being okay with me being out of the office on Mondays and Wednesdays between 9am-12pm to get my lab work done to pursue a career outside my current professional field. If there's anyone whose faced the same dilemma-I'd love to hear back from you!