The whole point of the decriminalization of ganja is to free up the police so they can deal with more important matters. The fine is going to be less than us$5, so even a "flurry of tickets" would not be much of a temptation for increased revenue at all.
Is it more likely that there will be little to a few tickets issued under the new ruling. By changing the law, the government has made it obvious that they no longer want their officers and courts to waste their time on small amounts of ganja.