Gimme a sec..........
OK, may be a bit longer, but it's pretty much almost all freeway.
Take 94 east to MI 14 just west of Ann Arbor. It'll be a left side exit about Exit 176 or so.
Take 14 East to I-275 North Flint. NOT South to Toledo
Take I-275N until it ends at I-696 and head East to Port Huron.
Take I-696 East to Greenfield Ave, its about 10 miles or so, and get off at Greenfield south
Go south about a mile and a half or so and make the right onto JL Hudson Drive; it's right after 9 Mile Road.
It's easier than it sounds and should be the quickest.
I pasted in a map from Mapquest; you'll be coming down Greenfield from the north.