Hi Aubade,
I've not collected them before, but I'll answer best I can. There are a few plants that make seeds that are ripe and green. Peas are a good example. So it is quite possible they come from the plant that way and are good. The color green does fade with time so purchased seed could be fairly devoid of green even though they came off the plant that way.
I realize bugs that were hanging out needed to go, but having them in the sun though is not good. A spot protected from the sun would of been better. It may not of killed them, but it certainly can shorten their viability.
To check to see if they are actually good, a simple paper towel germination test is all that is needed.
Remy