...Gubmint collapse type scenario, SHTF, you're mobile (vehicle) and traveling down a side-road (freeways are useless) to your Bug Out Location where much of your supplies are. You suddenly come across someone lying motionless on the road in front of you. You're armed with your rifle/sidearm/shotgun.
What do you do? Go around the prone person or stop to investigate further? Daytime. Lightly forested rural road.