you are going about it the wrong way, you gotta say:
"officer there's a white commodore thats been driving past the beach carpark alot, and he looks awful suspicious, i think he's a drug dealer.......he had a gun! i am worried for my grandchildren"

u should get a response from them when u say that. my cousin is a coppa, and she said that if you want them to react fast, mention guns, drug deals or children might be tagets, and they will be there asap!
DISCLAIMER: i am not responsible for your actions, take this info as you wish and i recomend an annonyms phone call.....from a pay phone....so u cant be caught wasiting police rescources.catch yas..