Temedar

Pure theory: get a visa to Belarus (into your US passport), fly into Minsk, cross the non-existent border with Russia by car. If stopped inside Russia, you can show your expired int'l Russian passport - worst case you'll get a fine for not renewing your local one.
Obviously this does break some laws.

A more legal approach would be getting a "return travel document" (usually issued when your passport is stolen), flying into Russia with it and then quickly renewing your travel passport. However, you'll pay a lot to get a new passport quickly, and I'm not sure that you can get a return ID at all.