It was captured on film -- OK, mobile phone -- by one of the many contributors to People of Walmart, archive of US discount store shoppers with questionable fashion and lifestyle choices. And here it is.
So, to sum up: a Sonic blue Crown Vic, an airbrushed Knuckles the Echidna and Miles "Tails" Prower, Metal Sonic's junk and a Walmart Supercenter parking lot. Forever immortalised on the internet. Thanks for the heads up, Hongo.
Sonic & Friends [People of Walmart]