Extreme caution should be exercised when a party in a dissolution of marriage action seeks temporary emergency relief without giving notice to the other party. This is what is commonly known as ex parte relief, which is seeking relief without providing any notice whatsoever to the other side. These types of proceedings are at substantial risk of reversal based upon a denial of due process of law.
There is a basic premise under the law that states that absent an emergency, failure to give notice to the other party is tantamount to a denial of due process of law. The appellate courts throughout the State of Florida routinely reverse temporary custody orders entered without notice to the other party, or with insufficient notice, or with insufficient opportunity to be heard. Putting it a different way, there are at least two sides to every story, and both parties should be afforded the opportunity to present their position to a judge, prior to the Court making any adjustments regarding a previously existing time-sharing schedule between the parents.
The former husband, Basem Yunis, ran afoul of these basic principles when dealing with an ex parte motion seeking emergency relief. You can read about the facts in his case in Suleiman v. Yunis, 168 Southern 3rd 319 (Florida 5th DCA 2015).