Final answer:
The timeframe to contact a supervisor for securing a tow destination depends on the company's policy. Employees should refer to their manual or protocol instructions, and if uncertain or facing unusual circumstances, contact a supervisor promptly.
Step-by-step explanation:
The protocol for when to contact a supervisor for securing a tow destination can vary depending on the company's policy or industry standards. Generally, there should be clear guidelines provided by the employer about the appropriate timeframe for contact. One should refer to their company manual or protocol instructions to determine the specific time period. If the situation is not covered by the guidelines, or if you are dealing with unusual circumstances, it is advisable to contact a supervisor as soon as you realize you need further assistance.