I did not forget to stop down, just checked and the lens is still where I set it, f8 @ 1/50 for ISO 100 film. With the 2-stop offset for the polarizer I should have been one stop more open than sunny f16. Given that the clouds were probably covering 70% of the sky That should have gotten me something more than the pastel yellow stuff I got.
I actually setup and waited before each shot probably 30 second to a minute for something like a bike to happen by.
The weird thing is that all four shots were equally rotten, the more I think about this the more I think the problem might be somewhere else.
I'll have to try a few test shots when I get a couple of free hours.