Seventy over in Lousiana or Los Angeles?
In California, my understanding is there's three classes of speeding ticket (1-15, 16-25, and 26+), but there's also a separate offense for doing over 100 mph [1] that allows for a license suspension of up to 30 days at court discretion on the first offense, with mandatory suspensions on further offenses. Additionally, I think you commited both the basic speeding and the 100+ speeding. And as a sibling remarked, you're likely to catch a reckless driving charge too.
Entertainment media isn't always the best way to get legal information.
Also, the cost of a ticket is the fee by law, plus a bunch of court fees and other stuff. IIRC, when I had a speeding ticket near Los Angeles, the fee by law was about 1/3rd the overall cost. I had to deposit the full fees in order to contest the ticket.
[1] https://leginfo.legislature.ca.gov/faces/codes_displaySectio...