Restriction on the location and time for doing penance

[justice99]

I was about to travel(~6hr accident-prone road trip), so I quickly went for confession early that morning, but did not say my penance in the Church because I didn’t want to miss/delay my relative that would be coming to pick me up that morning, instead in said it in the car.
So can we do our penance after confession any where?
And must we do it immediately after confession?
(Usually I/most of the parishoners do penance immediately after confession in the chapel or in the church)

 

[babochka]

What you did was perfectly acceptable. I often delay my penance until later because my children are usually waiting for me right after I finish confession. The only problem I have is that I run the risk of forgetting about the penance altogether.