Did he lift it by the lift points on your car or at the pinch weld?"With my HC I changed the oil at around 500 miles, again at 2K miles (end of "break in"), and then at 5K miles. And thereafter every 5K miles." Very smart man. On my RT with conventional oil, I had it written into the contract that they would do one oil change at the dealer, before I drove away with the car. I watched the mechanic, and he showed me the importance of pucks or wood blocks on top of the swing-out lift arms to avoid crushing the rocker panels. That alone was worth the cost of an oil change.
Then like this guy I did the first oil change myself at about 700 miles, then 1500 miles, then 3,000 miles, then every 3,000 miles as the regular interval. You only get one chance when the engine is new to get those particles out of there. I slap an NIB magnet on my oil filter to catch particles.
For the OP, you can take out the dipstick and clean it with denatured alcohol and a cotton ball from the CVS or pharmacy near you. When you get the dipstick metal clean, just use a Sharpie marker to mark to fill areas on the stick. Also you can very slightly score the dipstick with a small hacksaw to bring out the fill marks.