At the same time, some politicians were left off the hook for the same offence, suffering no punishment at all.
The uneven standards applied by the government, judiciary and police have drawn condemnation from both experts and activists.
The Athens Traffic Police said on Monday that a "smart" traffic light system equipped with surveillance cameras to monitor pedestrians and motorists will soon be piloted in the Greek capital.
The exact location where the system will be installed was not revealed. The results of the pilot program will be evaluated in order to expand the measure throughout Attica.
The trial over the death of 33-year-old LGBTQI activist Zak Kostopoulos in September 2018 in central Athens has been set for October 21.
Six people - two store owners and four police officers - are facing charges of causing fatal bodily harm.
The activist's family had lamented the delays in setting a date.
Are the crowds of young people who have been congregating recently in public squares in Athens and other parts of the country politically guided acts of the usual kind or spontaneous gatherings? Even if they did start as a reaction by young people to being cooped up at home for seven weeks, these party-like gatherings soon became political.
About 3,000 police officers will be deployed on Friday and over the Labor Day weekend to conduct checks on cars and prevent overcrowding as part of the plan to prevent the spread of the coronavirus.
Police officers will be at toll stations around the country carrying out checks to all the vehicles, while others will patrol the roads and make recommendations.