Policia Portuguesa

The police have struck me as particularly informal.
1. passing me and a friend on a hill, two of them called "cuckkooo! He-ee-looo! Cuckoo!" while on these funny buggy-things.
2. They smoke.
3. one police car was thumping out a beat, like "boom,boom,boom,boom".
4. On reporting a collapsed man in Barrio Alto, the police came over to where he was and just shoved him about a bit before leaving.
Hmmmm......