How did this even get here? [Filler]

I note that there's a trailer hitch, but it's dirty, too, so it probably wasn't pulling anything when it became mud-covered. But how did the get to be here in the grocery store parking lot?
(Filler from yesterday ... I should have swapped these two.)

[ DSCN4428S900x675Utm :: P&S ]

[Jane Anderson]

I'm sure this mystery has quite a story!

[GaryW]

And where has it been??

[Kathryn]

And who was driving it down the road without cleaning off the back window!

[Thom Mitchell]

@houser934 A possibility: this may have been transported on a trailer and was unloaded here...

[Rachel]

They've sure been having fun in the mud. Teenage drivers perhaps?