Hey Bob...how long you lived here?? You should be used to the inefficiency...

My experience has been a bit different. I've been robbed twice in CR and both were motorcycle police. Now this was four years ago and since then, have a lot of good to say about the CR police and the job they have been doing around downtown in the last months. It used to be a problem for guys walking around downtown to have the police stop, search and look for a bribe but the govt. got serious about it and now, seems solved. I don't even see many gringos stopped for passport checks which used to happen all the time.
On the transit police issue, I've been stopped three times in total. Twice, I was given a lecture about driving in Costa Rica and let go with no mention of a bribe or anything. Just seemed they were really interested in 'helping' me with driving in Costa Rica NOT trying to cause problems. The one ticket I did get, the transit policeman explained to me how to go and fight it and said that all of them were being dismissed by the court as they were writing them just to put people on notice not to enter San Ramon with a left-hand turn in the western entrance.
Be honest, longer I'm here (working on year 5), more respect I have for the job both police and transit are doing at least in my personal experiences. Also agree with Pops, there are good and bad everywhere. Not all police/transit are bad but they aren't all good either...just human.