I'm an ER nurse by trade. We have some amazingly stinky patients and medical problems daily. Some scents linger. We have found that dry coffee grounds (unused) absorbs smells like it's nobody's business. Buy a couple lbs of cheap coffee and put it out in the paper coffee filters around the inside of your pop up. Smell should be gone in a day. Also, I'd clean the tent ends really good and scotch guard them to create a barrier for future trips...
2008 Forest River Micro-Lite 18FBR
2000 Ford Explorer Sports Trac