Close. His first lines were that "here boy" when he petted his dog, and his last lines were indeed the "They're coordinates" line.
Okay here's another couple of them. Some of them are toughies:
1) What two things did Lex say Kitty was busy doing as he was unlocking the mysterious of the universe?
2) What did Jimmy say Clark was looking for during his 5 year absence?
3) What two things did Lex say he would trade for a quart of gasoline?
4) What three things did Perry say sells newspapers?
5) What was the last name of the woman that Lex swindled out of the money?
6) (This is a toughie) What were the only two lines, three if you really think about it, that Kal Penn had in the movie? (Amazing that he got name billing for it too).