Seeing as we don't have a protected right to silence or anything like that to fall back on, what's the procedure here when The Esteemed Member Of The Law Enforcement Community asks if you know how fast you were going and such? Raise an eyebrow and don't answer? Say "No" and risk being told "oh you were doing 69 in a 60" "Was not" "I thought you said you didn't know…" or something. Say "yes" and then deal with the "well, how fast were you going?" that will likely follow. So, how about compiling a good list of suggestions for "Guidelines for dealing with police that aren't likely to get you arrested, beaten, tased or shot"?