[V8] Carpet Pad Antifreeze Cleanup?

[Klein, Nathan P]

I took the carpets out of my V8 while getting the heater box out last
weekend.

The driver's side seemed really heavy, and made a puddle on the driveway
after I set it down.

Went to see what was up, and the foam on the underside of the carpet had
absorbed antifreeze like a sponge.  The foam is totally waterlogged
(well, antifreezelogged) and reeks of the stuff.

What would be the best way to get rid of this?  ShopVac it out?  Set it
out in the sun?  Throw 'em away and get new (used) carpets?