Comment by math_and_stuff

The bill explicitly prevents that behavior.

  "The 'opt-in' nature...would set it apart from other
  state internet privacy laws...
  
  the proposed Maine law also would prohibit any [ISP] from
  making the sale of customer data part of its mandatory
  [TOS]. It also could not charge higher fees to customers
  who refuse to opt in"

https://www.pressherald.com/2019/05/29/maine-on-track-to-pas...