UDATE:Need help. Lost exhaust and air pressure regulation.

By some chance you don’t have roadside assistance do you ? They would tow you in “free” as part of your plan. I would also see if there is a mobile mechanic that the shop can recommend that will come to you to get you secured enough / jury rigged to drive to the shop.
Short of that call a commercial tow to see what the charge would be to tow it the 12 miles , probably expensive ( hundreds ) but might be better than further damage. With no muffler and exhaust you must be Pretty darn noisy