Huh just noticed this question you posted.
What did you do with them?
You could have -- eaten the shelled peas, put the shelled peas in cooked food like soup, mashed potatoes, etc. or you could have let the pod dry out and used the dried shelled pea in cooking or tried planting it later on.
I can't tell when they are mature enough to grow but I save all or most of the late shriveled peas, dry them and use them for ground cover peas -- this way they'll either sprout, grow and help enrich the soil or won't sprout rot and ...well... Go back to the soil.
P.S. I like you new avatar -- who's the artist?