I agree with Yosef. If you could just drop them off for a little while and then pick them back up when you wanted, they would be overwhelmed with people using them as a hotel or babysitter.
They won't be able to assist you. Just so you have an idea tens of thousands of animals get euthanized in Broward county every year. Around half of them cats. Sorry if I'm being too honest. Your best bet will be to find a pet sitter. I'd they are fixed you might want to consider releasing them to a feral colony.
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