Yeah, DEFINITELY no reason at all to bring your snake with you to walk the dog. If you want a pet you can take for walks, trade your snake in for a different pet.

66 degrees outside is WAY too cold to be bringing your BP outside at all, nevermind for a walk. That's a selfish act doing your snake a huge disservice. If you can't put your animal's needs ahead of your own need to "look cool" walking your snake, maybe time to reconsider keeping pets.