Under the laws of all states in this country if you have 250 hours of vested unused vacation time and you quit your position, then your employer is required to pay you the amount of vacation time in terms of its policy and value at 50% for the 250 hours based upon what you have written.I suggest that you carefully read the existing policy in effect concerning accrued vacation time upon severance of employment in that such policy in effect will control the answer to your question.