The song playing in the school gym is "Party Rock Anthem" by LMFAO. I think it's been played in a few other episodes before.
I may have said this before, but City Wok was once a dojo - a Japanese building.
"How come a hard-working Chinese man open a business, some shmelly Japanese dog has to come and try invade him?!" - This might refer to 1931, when Japan invaded Manchuria, and the following years, into World War II.
"With the addition of the new Chinese restaurant" - the reporter misidentifies the nationality
Hmm, they seem to have forgotten that Sgt. Yates was promoted several years ago.