iona costello , 51 , and daughter emily were recognized by the front desk manager of the hotel they were staying at on sunday .
they were found at 3 am by nypd officers and are in good health .
police said they now consider the case to be closed .
it came after details emerged of the colorful background of mrs costello 's late husband 's family , who were in dispute with her over the contents of mr costello 's will .