Being more open-minded:
1. there could have been a family or personal emergency, on one or both or the owners' parts.
2. at least it's safety and shelter from the weather for animals (including lost pets) that desperately need it.
I don't find it 'creepy', as you said, at all.
To quote John Lennon:
"Life is what happens while you are busy making other plans."
Something to ALWAYS keep in mind.