I got pulled over for speeding, and after telling me off rotten, taking my name and checking my insurance, they told me to go on. They never gave me a ticket or any physical reciept. Will I get a letter through the post in the next few days or does that mean I've escaped with a verbal warning? Do they track verbal warnings? Have I just 'used up' their good will and will they be harsher next time?

Any UK drivers know the answers?