If you go about a block before the main gate entrance about an hour before the game and just wait you will probably run into someone who is falling down shizzled and will give you their ticket.
Are the UGA fans really that bad? I know some fans can be. I went to Ole Miss a few years back, and they were awful. My aunt's car got spray painted there too.
They are obnoxious. The urine bombs is more of a UF thing. Plan to be underwhelmed by their gameday atmosphere. The stadium is nice and the campus is beautiful but Athens is not very loud. Traffic getting out of there sucks and is especially torturous after a loss.
The Grill (old athens place, good burgers, fries...)
Last Resort Grill
Five and Ten (lumpkin)
The Grit (veggie type place--good)
SR. Sol / La Parilla -- good mexican
I usually try to drive out down Atlanta highway, then go up in to Winder and then Gainesville. Come out thru the mountains into Dalton, then hit 75. It's longer, but much prettier drive and less traffic.
Try to park and tailgate on East Campus. The parking is free in the East Campus Parking Deck.
You can't go wrong with restaurants downtown. They also have the hot dog/bratwurst guys down there too (my favorite).
After the game, going downtown is a must. One of, if not the, best college bar scene in the country. 63 bars in a block and a half. Just bar hop around with the Georgia Peaches.