when are your dates Dan, it seems the rate she mentioned is good for rentals up until November 20 for a week, after that the rate increases from base rate of 67 to base rate of 212 ( this is being done at 4 am in the morning by the way....)
no special coding for dates up until nov 21, just the regular Emerald Aisle code and ND 35$ off coupon BUT times of pickup and drop off seem to affect the rate eg if you leave it at default of 12 noon/12:30 pm ... it comes back at the HIGH base rate, change the times to 3 pm and 10 am as she lists AND boom.....GOOD rate, was also able to get the good rate using the pick up time of 1:00 pm
example....nov 20 at 1:00pm to dec 2 at 10 am....good rate, but nov 20 1 pm dec 2 1 pm higher rate ( seems like it is best to stager the times and not be exact same for both dates )