My friend,if i where you i will just start of with something
more gentle, like a bunch of nice flowers, forget about roses, it
is too common, possible some other flowers that is more unqiue. If
she so special why go with the norm ? Show her you are different
from the rest too.
As she is not yet your girlfriend, you don't know how she feel
about you. It be nice excuse to give her a bunch of flowers, just
put it as you came across a flower shop it nice so you buy it for
her.
driving in straight with 1089 or 99 roses - may just frigtened her
away, without giving her room to manueor even if she like you,
think about she may not like the attention it will draw. Which
could cause her to totally avoid you instead.,