Empty the oil to a better level, take it for a run to clear anything in the pipes and see how it is... I'd like to say it wont have caused ruptured any seals but who knows how high the thing was filled Prolly will be fine though.
Oil round the turbo generally means the oil is getting past the seals in the turbo, have a look in the induction piping from the turbo and see if there is oil in there, that would cause it to smoke.too if oil gets ingested by the engine via the induction pipes!
Some stripping out done the past few days, Then to get them lights an siren removed an come way a plan to replace the voids from these As you can see I come across the speakers below roof cloth