Had that happen yesterday at a fairly dangerous spot on my ride home. I have to cross traffic where a freeway offramp becomes a freeway onramp and people are only focused on merging in and out of the lane. Some lady in a car saw me and stopped, I had already stopped waiting for the traffic to clear up once the light down the street cycled and stopped all the oncoming cars. I waved them through and gave a nod. I hate when they do that for the reasons mentioned above. I ain't gonna be that guy that gets drilled by the impatient jerk who HAS to get home right now and whips around her to cut her off. I am in no rush. That is why I took a bike. lol