LOVE AND LOGIC GIRL!!! Yes, he will remember delayed consequences. Have you ever forgotten to do something you said you would and he reminded you? My 2.5 year old does. When she is yelling in the car, I will say "I will be happy to listen to you scream but it will cost you your Snow White doll (insert favorite toy)." Since she is too young for money, I make her pay me with toys. It works. If she will not get in the car, then I say something like, "That is so sad, we will not have time for (insert whatever motivator he likes....tv, video games, books at bed, etc.)" Or I have used "I am so tired from all the work it took to get you in the car, it is so sad we can not go do ......."
Love and Logic has helped me so much and I highly recommend it. There are books, classes (let me know and I can email you the list of instructors in Texas), etc.
Good luck, this should be a phase that will work itself out with proactive parenting.