Not wanting to touch things in another person's house is pretty understandable, at least for me. It's not *your* stuff, so you don't want to mess with it. It's something to challenge though if they're comfortable with you being there and have somewhat of a "mi casa es tu casa" mindset.
Is there a way you can get a script for a higher dose sent there for you to take?
Would love to hear about the dog too!