No, they weren't our eggs. We didn't have any of our own laying at the time. We knew of a house near the Post Office that sometimes put eggs out for sale in a cooler, and they usually have a mix of colors.
Out of the 4 eggs, 2 were fertilized/developed. 1 did awesome until lockdown and then quit. It seemed stronger and better developed than the one that actually went on to hatch.

We named the chick that hatched... Roadside. I voted for Frigidaire!! But I lost the vote.

LOL
You should do it! It was fun just seeing if it would hatch. I mean, after being in the fridge for 3 days the odds were totally against it, right?!