My thoughts....FWIW.,,.plastic canopy....tinting.....most solutions are for glass surface.,..we're dealing with plastic....
For the cost of a new canopy (parts and labor plus downtime and shipping both ways)......buy tinted or deal with it....
If dumping a ship soon...."buyer beware"....
Otherwise....(guessing on my part)...,,run away fast....
My $0.02..,,