Just for comparisons, I've compiled the closing lines for all LSU games this year:
@TCU: -4, won by 10
UAB: -34, won by 39
Kent st: -36, won by 32
Auburn: -17.5, won by 14
@ Georgia +3, lost by 3
@ Miss St: -7, won by 33
Flordia: -8, won by 11
@ Miss: -10, lost by 3
Furman: -47, won by 32
@ Bama: +14, lost by 21
T A&M: -3.5, won by 24
Arkansas: -28, won by 4
Iowas:
N Ill: -2.5, lost by 3
Missouri St: -26.5, won by 14
@ ISU: PK, won by 6
W Mich: -16.5, won by 56
@ Minn: -2.5, won by 16
Mich St: -2, lost by 12
@ OSU: +19, lost by 10
NW: -4, won by 7
Wisc: +9, Lost by 19
@ Purdue: -16, won by 24
Michigan: -6, won by 3
@ Neb: +3, won by 21