I have an older Yukon that use to be my Dad’s. I wouldn’t hesitate to sleep in it if I had to. Unfortunately, there may not be a safe place to park. Another thing to consider is a make-shift porta-pot. Just sayin’,
a mcdonalds is a good bathroom place. otherwise for liquids keep a gatorade bottle around, sturdy and has a great locking cap. or old school, get a plastic molded camping toilet.