I tell anyone who wants to come to my house about the pet zoo and if they have an issue, they don't come over. I don't take my pets to anyone's house if they would prefer me not to. It wouldn't matter if it were parents or friends or strangers. It also doesn't matter if it's a snake, a gecko, a rat or a dog.
I mean really, would you insist on taking a large dog to a stranger's house for a party, knowing they never allowed dogs in the house for whatever reason? Most folks would be polite and make other arrangements while visiting the stranger's house. Why should we be LESS tolerant of a family member?
To me it's akin to insisting on smoking in someone's house.
If your parents say "No critters!" then go home but stay in a pet-friendly motel and visit during the day. Or stay with another friend nearby who doesn't care if you bring critters and visit back and forth. Or just tell your parents who invested those 18 years of taking care of you and putting up with you stuffing a jam sandwich into the electronics and fed you and worried over you that it's just too much trouble to leave your pets behind for a day or two to visit them.
I figure if I can make arrangements for all my zoo to be taken care of to go off on a convention vacation trip, I can do the same in order to visit family if needed.
I don't think OP is talking about visiting for a few days, rather moving home for the summer break (i.e. 4 months).