We brought my 3 ND adults home in the back of my CRV with the seats down. I laid down plastic and towels. They had a 4 hour trip and didn't pee till I opened up the back at my house. The first one went, then the other two followed. I thought, "wait one more second"!!!! It was kinda funny. They looked at me like "ahhhhhh." The plastic and towels held everything fine.
so I had them quarantined for a good 5 weeks. Luckily they didn't get soremouth. (We are a soremouth-free flock & farm.)