Guilty Conscience?

Before I put the honey supers into winter storage they are frozen for 48hrs+ to kill disease organisms and pests (such as wax moth); I am lucky to have an old chest freezer- which my wife allows me to use! I began this process tonight putting the first 4 supers in. As i grabbed the handle to shut the lid down a wasp appeared from within the comb, realising the sudden drop in temperature? I shut the lid down quick! After 5 minutes of deliberating I returned and opened the lid- no sign of said wasp- guilty conscience?