Obama's superior advantage in organization absolutely decimates McCain in states that Bush won by comfortable margins in 2004. Blacks turn out in droves. Young people also turn out like never before (in N.C., Obama is crushing McCain in terms of support for young people. And these kids are actually going to the polls. They are enthused about Obama and they are voting.) I was in line last week. Everyone was sporting Obama signs.
The fact that campaign material is not permitted by law within a certain distance of the polling place leads me to doubt (slightly) the veracity of your anecdote.
Probably true, though.