What do I do?

At 7am in the bike lane on the Key Bridge, a bridge between Washington DC and Arlington VA, two of the wealthiest communities in this country, I almost ran over a sleeping homeless person. It was below 40 and the only shelter is the jersey wall that keeps the traffic from going onto the bike path. This person was asleep. Curled up. Countless people had passed by him this morning. I did too. I wondered too late if he was alright.