In the same era of Epicurus lived Demetrius I Poliorcetes = "The Besieger" the son of Antigonus I Monophthalmus and Stratonice. He was a Macedonian Greek military leader, and finally king of Macedon (294–288 BC). He belonged to the Antigonid dynasty and was its first member to rule Macedonia and Athens.
When Demetrius removed Cassander's aristocrats that ruled Athens in 307 BC, many Athenians were grateful to have Demetrius as their more lenient master compared to Cassander's men. Epicurus moved back to Athens just a year later.
It seems likely that Epicurus also favored this political turn, as control by Demetrius I Poliorcetes may well have made an environment more conducive to start the community Epicurus wanted to establish -- scholars seem generally allow that he fostered a favorable intellectual climate compared to Cassander. Demetrius also used his "Besieging" know-how to build up-to-date fortifications for Athens... And also, a glance as his personality will show that he just probably would have looked upon Epicurus' philosophy with casual approbation.
But politics is complicated and it seems that 13 years later Athens rebelled against him, unsuccessfully, but it was at that point in 294 BC that I think Epicurus probably did his famous rationing.