Taking the child out of the situation to view what is going on is usually enough of a consequence. 5 minutes is too long for a toddler to be punished. Punishment is not the answer. Sometimes a toddler will push to get attention. Unfortunately it's negative attention.
Limits can be another issue.
The child could be asking for the adult to set limits. I really like the style of the daycare that is modeling gentle hands for him and praising him. I'm impressed that he knows so many colors and has such discernment for his age. I know in my classroom when a child starts to push it's usually for a good reason. Once the prepared environment does not meet the developmental needs of the child he is ready to move on to greater challenges.