Murray Woo

My 2008 C350 had developed a broken headrest at 7000 miles, after about driving it for a year, so I took it in for warranty repair. I had service "A" done while I was there since it's been a year that I had the car. Might as well, didn't want to bring it in again soon. My car now has about 10,000 miles (I know, I don't drive much, work is only 2 blocks away), and when I check the "service" on the instrument cluster, it says "service A1" is due in 180 days. That's in six months. My lease is done in 10 months. I don't want to pay for a service and return it right away! My question is, is this legit? Is service A same as A1? Or completely different? In my service manual it says the first one is at 13,000 miles, then the second one is at 26,000 miles. I know I had the service A done early but I don't think I should be penalized for it. My lease is only for up to 22,500 miles, so I won't be anywhere near the 26,000 miles mark. So what should I do in 6 months when the service light starts to go off?