TIFU and ended with a dead car

Not an exciting story, but a true one. And, it happened today.

Yesterday, I went to get my oil changed. During the process, they asked me to test my lights. My car has an "automatic" setting for the lights. When it is on that setting, when the car is in gear, the lights come on & don't shut off until a few seconds after the car is turned off. During the testing, I turned the lights on manually.

No one noticed, or if they did notice, didn't say anything to me about my lights being on during the oil change. During the oil change, they had me stay in my car, so I didn't see my lights on.

When I got home, as I was leaving my car, that little "dinging" alarm went off. And here's the part where I fucked up - I ignored the alarm. Yes, the alarm built into the car to tell me that something is wrong, I ignored.

This morning, I went to get into my car to drive to the bus station. As soon as my keyfob would not work, I knew what the issue was. So, I opened the door with the key and nothing worked.

I ended up walking the almost 2 miles to the bus station. I missed the bus I intended to take, but fortunately, I got to my office on time. But I will never ignore that warning again.

TL;DR : I didn't listen to the warning alarm in my car, ended with a dead battery, & had to walk to work.