I had the same issue. Did my first oil change and forgot to grab the bottle for the Blackstone sample - Fuck. I had a few seconds to decide what to do. Didn't think I could retrieve the bottle in time. Decided to put the plug back in while the oil was gushing out - hadn't spilled a drop up to that point, but putting the plug back into that full gush got oil on the exhaust. Afterwards I cleaned everything with degreaser (thought I did a thorough job), but had the burnt oil smell with the HVAC on. Figured it would burn off, and eventually it went away, but took far longer than I expected. Still smelled 1000 miles later, but was gone by 1500. Thought I might have to replace the cabin filter, but the smell went away before I got around to it.