How not to bring home carpet beetles?

I'm staying at a friend's house and found what I think is a carpet beetle larvae crawling between the comforters. How do I make sure I don't infest my apartment when I go home? (Assuming my dog and I did not bring them.)

I have put all my clothes in Ziploc bags. I have put my luggage in contractor garbage bags. They are sitting in the trunk of my car in 21 degrees. When I get home, I plan to: Put my luggage on the porch Wash all the clothes and my dog's collar/leash Keep books in ziplocks Put the empty luggage in fresh contractor bags Things I can't wash: my medicines, dog food, my wallet, my hearing aids and case, glasses and case.

They live in Southern NY State. I'm heading to Washington DC.