We tried to spend a lot of time last night in the camper but she meowed (actually howled a lot)the entire time, scratching at the door and generally making is clear she didn't want to be in there. Treats didn't work, food didn't work nor did a lot of petting or playing with her toys.
We may try again but it is looking more like the neighbors get to take care of her again. They do a great job so we may not try it this trip.
Thanks for all the info but this little kitty is very set in her ways and does not like change at all.