

Weed smokers, vapers, and smokers in general are some of the most self-centered people I have ever had the displeasure of talking to. They think their smoke doesn’t affect anyone else and fail to understand that some people find the smell nauseating. They then proceed to litter everywhere and make their smoking everyone else’s problem.
There are obviously exceptions to the rule, but they are far and few between.
They are not allowed to charge you for this, and it was not made clear in any way that your former boss would charge you. Any lawyer worth their salt would laugh this out of court.
In many areas they are also legally obligated to give you the information you requested free of charge.