Give him at least a week. You are going to own this snake for up to 40 years! The wait will be worth it. I do not handle for a week, then I try to feed them, so in reality it is more like 9-10 days before I handle a newbie. I barely touched my pastel when she came in because she ate, then immediately went into shed 3-4 days after eating. It was SO frustrating!
I hope not many people told you to only wait two days? that is not such a good idea, you want to minimize stress to the animal as much as possible. They are in an entirely new environment and need time to settle in. Some people prefer to rush off and do things the second they arrive at a travel destination, but snakes usually not so adventurous!