I am not finding how to accomplish this in a Predicate, other than using DateTime.Now.ToUniversalTime() instead of calling the DB function.
filter.Add(new FieldCompareValuePredicate(SomeTableFields.SomeDate, null, ComparisonOperator.LessEqual, DateTime.Now.ToUniversalTime()));
Is there a way to get the DB's GetUTCDate() function called?