Well, it is mutual :) Bulgarians also don't get along well with the Bulgarian police :D
Especially traffic police - their main purpose is just to milk the drivers.
I am a very careful driver, haven't been in any incident since 2004 but still I got two fines in the last half an year. Lately they use more electronic register and rarely stop drivers unless, of course, there is an accident.

Plenty of places where intentionally wrong traffic signs are left so drivers are fined. Where I live there is a new road between two villages, road reconstructed more than a half year ago, it is about 8 km long and speed limited to 40 km/h. Total nonsense but done intentionally.

What I hate the most in particular is the car registration process that hasn't changed since the dark communist ages of the year 1980. More than 2 million people live in the capital city and there is just one place where one can go and register their newly acquired vehicle. I've been through the process several time, usually that whole day is lost and that's assuming all documents are well prepared.

The poorest country in EU with the highest levels of corruption and those two are connected, of course.