Are these mushrooms still edible?
No - not edible, is the only responsible answer to this question. From the given information and photo, it's impossible for someone on these message boards to positively identify what you have.

The saying is "When in doubt, throw it out". As with all foraged mushrooms, don't eat it if you are not able to 100% positively identify it. This goes for fresh and as well as 5-day refrigerated specimens.

My background: 3 years experience foraging local wild fungi in midwestern USA and scientific fungi identification.