Upright freezer door was left open!

Help! Husband was putting some bread in the freezer and didn't lock it. I went in there about 13 to 15 hours later and the door was cracked open about 3 or 4 inches. This is not a self defrosting freezer! There was ice on the top shelf and a little on the rest of the shelves. This freezer is filled to the max. I think a package of sausages might have fell against the door and kept it from closing. Husband swears he locked the freezer but when I closed it and out the key in I had to turn it to lock so he didn't.
Bottom line, I didn't check to see what state of thaw anything was in just shut and locked it and walked away. I was so angry I didn't even go near the freezer. I was just reading that if food had ice crystals still it could be refroze, if not cook it now. Too late because it all refroze by now. What do I do? I'm not feeling good about tossing 15 CF of mostly meat.
What is the worst that could happen if any meat had thawed 100% and then refroze and then was eaten? Is it just taste or heath?
Any thanks for any answers. Please don't tell me any horror stories, just facts :)