Fuel oil situation

So, I have used this forum a lot for info but have not done much posting. I have a weird situation right now so figured it was time to post. I recently had a large fuel oil spill in my attached garage and we are getting some fuel vapors into the house. Is there any chance this may affect my reef tank in any way? I haven't seen any signs of oily water or anything and it's been about a month since the incident with no obvious effects. It was about 200 gallons of #2 home heating oil that was spilled and it's in the process of getting cleaned up. Any ideas? Am I worrying too much? Thanks! Love this site!