Agree on the Walgreens lot. Somebody always cuts in off Colonel Glenn, then somebody else tries to turn left out of the drive-thru side, and now nobody's going anywhere. If there's an accident and the light's already flashing, I figure I'm better off just sitting.
My usual move is to turn around before I get anywhere near Colonel Glenn. I go back up toward Asher and take Fair Park over, or get on 630 if I'm headed east anyway. It's longer on paper but I keep moving. I'd rather do that than idle, especially in the old Chevelle. She runs hot in stop-and-go and I don't love sitting in it with the temp gauge creeping.
No idea what happened tonight either. I'd check the LRPD and LRFD pages in the morning, though like Heather said, it'll probably just say "traffic incident."