Then I would submit that they have no business calling themselves pros. There are so many issues that can only be noticed on a test drive. For example, a rough wheel bearing. Need to have the weight on ground and rolling and maybe only audible on turns. Is the steering wheel straight? Does it drift or pull? Brakes straight? The list is long. Got my Journeyman's card in 1980 so I picked up a few things. If you have not road tested the car, the inspection is incomplete. I suggest you find a better shop.
Not sure what your state requires as part of an inspection. Could be that these shops are only doing the minimum required. Still, the inspection is not thorough without a road test. I would ask to be sure this is part of the service.
Road tests are not standard practice in a PA safety Inspection. I've never had a shop take a road test in over 30 years of getting cars inspected each year, with several cars in the family needing inspection each year. At various shops.
Road Tests are standard for dealers to do a PDI(pre delivery inspection). But that's if you bought a car that recently came off a truck and the dealer hasn't done it yet. They do it to every car they sell. They do drive it hard and press the brakes hard to make sure they work well. However, this would have been Tesla that did this, not a private shop.
They check emissions by connecting to the OBD-II port for post 1996 cars.
For the most part they check:
1. Tire Tread Depth.
2. Suspension bushing and components(check for looseness).
3. Brake inspection for rotor thickness and pad thickness.
4. Steering components such as a leak in the rack and looseness in any components.
5. Windshield Wipers and cracks in the windshield.
6. ALL light bulbs and lights install on the car, even aftermarket.
7. They spin the tires on the lift to check wheel bearings.
8. Check the frame for holes due to excessive rust. (generally not a problem here, but some people do buy cars from very salty states and fail this part)
They do not check TPMS sensors, the TPMS light can be on.
Check engine light can also be on as long as it's not emissions related.