Couple of examples of this from recent Panthers games.
Against the Tigers between the 2nd minute when Wakeham scored, and the 29th min when Panthers took the lead, Tigers conceded 6 penalties vs 1 received. After Panthers took the lead, Tigers were then perfect for nearly 20 mins before they gave away a set restart. After re-taking the lead, they conceded a further 2 penalties. So for the 20 minutes the Tigers were behind, they conceded a total of 1 set restart and 0 penalties, vs 8 penalties while in front or level.
Against the Knights, at half time the Knights were winning 14-6 with both team conceding 4 penalties and 2 set restarts. From the start of the 2nd half to the 58th minute when the Panthers drew level, Knights conceded 5 penalties and received 1 set restart. After the 58th minute once scores were level, Knights suddenly became perfectly disciplined and didn't give up a single penalty or restart.
The Melbourne vs Warriors game had the same trend. Can probably find a bunch of other games with similar.