"Boorishness" and "slobbery" are both given in the dictionary; do you feel like they represent the quality well enough? I forgot they still existed by now. Haven't met any since I finished local high school. Did they ask for "сига" or "позвонить чо", by any chance? What makes you not want to return to live in Russia? Also, I would advise you to come to other cities still, despite your terrible experience with Moscow: those cities beyond the Ural seem to be all less densy populated, slower and calmer. Visit Tomsk if you'd like to get the impression of pre-Soviet Russia mixed with some late-Soviet and modern architecture, or visit Kemerovo if you'd rather see a mostly-modern-ish look. Both have quite an impressive view."жлобство" (is there even a word to describe it in English?)
Also, there is nothing quite like being approached by the "гопники" in my hometown