As "Mike" explained to me, a car tire will last longer because it is made of harder rubber. Harder rubber does not allow the bike the "grippiness" of the softer rubber on a motorcycle tire. While I'd like to get more mileage out of my tires, I'll stick with the SAFER option.
You have been brainwashed.
Of course the dealers "recommend" tires that they make a HUGE markup on.
The rims on Spyders ARE CAR RIMS.
Car tires can be had with all kinds of different characteristics.
If you want soft, sporty with lots of grip......they make those. Pirelli comes to mind.
There are others.
If your riding consists mostly of going in a straight line below the speed limit, there is NO reason that you should not feel perfectly "safe" on tires that will last a bit longer.
As for the inspections, the Kenda's ARE car tires, just very light duty ones.
Do you think they will fail inspection too ??
A Spyder is not really a motorcycle.