Finding synonyms for the word "parking policeman" can be challenging, as there are many different terms that could be used to describe someone who patrols parking areas and enforces parking regulations. Some alternative terms might include "parking enforcement officer," "parking attendant," or "parking warden." Other possible synonyms could include "parking marshal," "parking ranger," "parking enforcement agent," or "traffic warden." Ultimately, the most appropriate synonym will depend on the specific context and location in which the parking enforcement is taking place. Whatever the case, it's important to respect the work these individuals do to help keep parking areas safe and orderly.