Hey Google -- Utah County Exit Numbers are wrong

Not sure how to send a message to the Google administrators, but Utah
has recently changed the mile markers and exit numbers on a stretch of
Interstate highway I-15 in the Utah county area -- e.g. including
exits 280 to 273 or more. That makes Google maps wrong (and Mapquest
as well -- they have indicated that they are waiting for the data files
from someone in order to correct their maps.).

Anyone know what number to call either at Google or in Utah, in order
to get the problem solved?