I did this when at a caravan park. I asked if they had an area where you could do minor car work, and no, they didn't. So I asked if I could do it on-site. They said as long as I didn't make a mess.
So first I drained the catch can into a chop packet. After dark, because the kids had to be showered etc. The oil missed the chop packet and went behind it, all over the grass.
Then through a comedy of errors the filter spilt a heap. Because I didn't have an oil pan, the funnel didn't work great on the sump drain. So 10pm I'm off to find a car wash to avoid spilt oil from under the car dripping in more spots. 11pm I'm back washing the grass with dishwashing detergent, water, and clean rags. I think it worked - at least they never realised in time to bill it back. Any dead grass would probably be due to a couple of naughty words uttered when I found the drips.