Ugh, I hate that other people ruin for the good dog owners. 
 
Could you get a few ex-pens and put them together to make a bigger fenced in area as needed and then it could be removed?   
https://www.amazon.com/Playpen-Outdo...NsaWNrPXRydWU=  https://www.amazon.com/AmazonBasics-...2s9dHJ1ZQ&th=1