They are very hillbilly-like and wear cap hats. Floyd is very tall, thin and orange while Lloyd is short, fat and yellow.
They are very rude, but in the PC game they are just neutral. They also seem to be very goofy and laugh at almost everything.
In the movie, they are quite mean and keep mocking the Patty Wagon, SpongeBob and Patrick saying "You won't last ten seconds over the county line!" Later on they see Dennis and they ask him "Does that hat take ten gallons?". Their fate is getting their lips torn off by Dennis. It is unknown if they can get them back or talk ever again.
You see them at the County Line saying they went to Goofy Goober's Ice Cream Party Boat last night and got the sheet music for the Goofy Goober theme song to play on his harmonica. Lloyd gets upset because he said that Goofy Goober was his best friend.
PS2 and Gamecube games
The Gas Station Attendants stand laughing at you from beyond the county line, laughing and boasting and when the player destroys Plankton's last radio tower, the rubble crushes the gas attendants.