Hey Greg... wanna go eat a belly full of krispy kreme donuts and then go run 3 miles? 

5km = 3.10686 miles.... I figure if we cut close on the corners... (hopefully they have corners) we can get that to under 3 miles...  and maybe there isn't a time limit.... half a day sounds like a reasonable time....

They probably have a rescue squad or two on standby.....

And a clean up crew.

We had a KK one town over. 
Stayed open for maybe a year and a half. 
Everyone thought they were too sweet and too much glaze. 
They've been out of business now for about 5 years and as far as I know, know one in NJ has attempted to open another.
I could go into PA and get them but I too thought they were rather gross.
We have an old fashioned donut shop here in town called OP-CO's and they make amazing, delicious homemade doughnuts and fritters. Mmmmm-Mmmmm. Nothing even comes close.
If you're not there by 8AM you're out of luck. All sold out.

Mike