No offense but thats really bad advice. The guy has a cop living next to him, think about how your advice may mean his life is ruined! You dont know how close the cop walks by, maybe he doesnt have a 'free' window for smell to go away, maybe his window goes straight to the cops window, maybe the cop passes by his window and would smell it, etc.
Plus, he said he lives with roommates, which might not be OK with what he is doing. So this means probably no freeze precipitation because he wont be able to use the shared freezer, but rather having to evaporate all the naphtha, = many mls of petrochemical solvents evaping = definitely significant smell. If there's perfect air circulation or whatever, maybe it wouldnt be a problem, but thats not something you can affirm so easily that it will not have a smell and specially not something you should so lightly offer advice for when there's a fellow Nexian who might get arrested if he follow your words while not having the best of luck...
Again, please, be safe autodidactic, dont risk it.