Most places that "require" a CS degree don't actually, and I wouldn't want to work for any company that is so stuck up in BS bureaucratic policy that it can't evaluate an employee on their merits. I find the lack of degree makes a good filter for avoiding companies with BS internal policies that would be frustrating to deal with on a daily basis. I want to work with humans who take reality into consideration not just arbitrary rules.
With that said, lacking a degree can hamper you in the beginning because you need some way to show that you actually know enough to be worth hiring. I solved that problem by simply working for myself in the beginning. As you've already got a job I say screw the degree, and put the saved tuition fees towards doing something amazing with your life.