What happens if a cop doesn't give you a ticket Does it mean he left you with a warning?

If a cop doesn't give you a ticket, it may indicate that they chose to issue a warning instead or determined that a ticket was not warranted based on the situation. In some cases, officers may use their discretion to let a driver go without any formal consequences. However, it does not always mean a warning was given; the officer might have simply decided that enforcement wasn't necessary. Ultimately, it's up to the officer's judgment at that moment.