There are laws against filing a false police report. At that point there is a paper trail, as well as intent, that can be used to prosecute someone for perjury, and they could be liable for expenses/time incurred by the police.
However it would be much harder to arrest someone for blatantly misusing 911 services. The element of malice or deception needs to be proven. If there is any ambiguity in a legal sense, prosecutors will usually decline to move forward with the case in favor of more weighty cases. Plus, police do encourage people to call suspicious behavior in, and being more aggressive in terms of arresting misusers (unless the behavior is just absolutely blatant and rock solid legal-wise, like swatting for example) would be detrimental to that end.
So short answer to your question: if there are any such laws, they are not used for a variety of reasons.