The answer is:
“to avoid the rule”
“no longer allowed to stay”
Verboten means forbidden, especially by an authority. As a consequence, the phrases chosen encourage the understanding of the word in context because they are related to explicit regulations or principles governing behavior. For example, the expression "to avoid the rule" by hiding the puppy in a bag specifically implies that the word verboten is a prohibition. Finally, the fact that the people were unauthorized to stay at the hotel confirms the dog was discovered and hotel's refusal to accept pets.