I would argue that this section has been misinterpreted by the people who have claimed Tesla can't open a gallery, attend auto shows, or otherwise advertise their cars. At the very least, it is ambiguous enough to be challenged. The key is the use of the word "from". This divides the sentence into two separate thoughts.
This subdivision does not prohibit a manufacturer
(a) from providing information to a consumer for the purpose of marketing or facilitating the sale of new motor vehicles
-or-
(b) from establishing a program to sell or offer to sell new motor vehicles through franchised new motor vehicle dealers that sell and service new motor vehicles produced by the manufacturer.
A gallery or auto show display operates exclusively under point (a). You can provide information on the cars, and facilitate sales by telling customers to go to the website or visit a store in another state. You just can't sell them a car while providing this information.
I'm having a bit more difficulty understanding point (b), but this may refer to test drive events and the like, which can be performed by manufacturers but must refer customers to franchised dealers to complete the sale. Thus, Tesla is prohibited from offering test drives consistent with how they were shut down in the past.