Photo by sintixerr. Ah, metrofail. For many, it’s part and parcel of living in the nation’s capital. But what happens when Metro goes above and beyond the usual delays and crowded trains to actually lock people in a station after the system closes for the evening? Well, that’s what happened in the wee hours of Friday morning, leaving a cadre of hard-workin’ folks — at least those who couldn’t squeeze through the gates –…