I drive a '98 Avalon XLS. I love it. I think the 2005 is gorgeous. i've been eager to get one.
All bets are off. Have you noticed there's no keyhole for the trunklid? Honest. On all four models. You can only open the trunk with the button on the keyfob or the button on the dash. Period.
You say the battery is dead and your jumper cables are in the trunk? Tough.
Unless they fix that in the '09 facelift, I guess I'll be driving my '98 for another five years. Thank goodness it's the best car I've ever owned. (I traded up from a Lincoln Continental.)
Sadly, Brent "This old anvil laughs at many broken hammers." -- Carl Sandburg, "The People, Yes"