Stack question

please don’t judge me... or go ahead but don’t share your judgement. Lol
Recently I managed to have an oops while delivering steel tube.
Little background first. Went inside office staff says “just pull under...” (this here starts the trouble!) “...the hoist beam right out there and the guy will be out to get you unloaded.”
So, I do as they say and well the steel beam is a little lower than I anticipated. It rubbed my stacks, but once I heard the noise of it I was already beyond PONT (point of no return) It rubbed a bit more than just a little and bent one stack and removed the other from the lower exhaust. Now I tried to fit the stack back in, but failed. It flew out on the road. I recovered it and had it put back on again where it days later flew off again and ended up in a gully along I75. Now no one was hit or involved and this leads to my question.
Is the upper stack a DOT infraction if it’s missing?
Am I risking any issues by running till I can replace it myself?
Do I need to repair this immediately?
Length of the stack, how important is this? I may just order both new and replace them at the same time.
Any one got recommendations on where I can get a couple 5” curved chrome 36-48” stacks?
Thanks

 

They are side stacks on a Pete.

 

It’s a two piece. Comes up with a heat shield then transfers to a top stack. Plain curved.