Rick, the older of the rambunctious youngster brothers, is portrayed by James Mathers, the real life younger brother of Jerry Mathers of Leave It to Beaver (1957) fame.
This one of the few appearances, in the late '60s and early '70s, that Foster Brooks was not portraying someone under the influence.
Hype is slang for an illicit drug user, most specifically of intravenous drugs as hype is short for hypodermic (needle).
586 = illegal parking.