I guess as long as you are polite, they will be too. It's not a time to get an 'attiude' about being stopped !
The main thing is to never panic and try to outrun them !!!
When Dita said she'd never been "pulled over by the mounties" I thought that would be really painful as I'd hate anyone to start pulling my 'mounties' about - then I realised she was Canadian - and they have monuties over there .......... I've been blonde for too long..