Is AUTHOR wrong in the post ? POST : Typing on mobile ignore formatting

So basically our apartment doesn't allow tenants to smoke or vape in the apartments going so far to evict tenants and were facing the main office with a big window view into our living room. So I laid out 1 rule for my sister which is to not vape inside the house or I'd break her vape. This wasn't impossible because we have a patio which you're allowed to smoke or vape on.

Within the week I caught her vaping inside. Which I let slide. Then I catch her yet again so I give her a small lecture which she just blows me off. Then just 2 days later I come home after a long day of doing errands and work and see that she has 3 people over and they're all hot boxing the shit out of the living room. I was furious to say the least so in anger I snatched the vape from her, walked outside and threw it into the concrete. Then kicked out all her friends.

For context we all are on the lease and I can't always keep an eye on her all the time because I'm the one doing all the work around the house and currently am the breadwinner. 

So am I the asshole?

TLDR we cant vape In apartment. I Told her she cant vape in house. She didnt listen. I broke vape.