1st that fast is reckless automatic go to jail.
2nd the weed is a misdemenor (I know that's not right spelling)
3rd the para would mean he had a pipe or rolling papers of some sort
4th Ten bucks says that the guns were loaded or ammo was readily available which is a felony
5th if the suv had compartments then they probably felt the need to inspect further
As for the lights and siren they are not illegal as long as they weren't on. Unless they were in the open like a light bar. Flashing lights are ok in a parking lot and so is the siren unless someone calls in, then it's noise pollution.
In the end if the police want to persue he could never own a gun again. Drugs in the same car as a gun is just like domestic violence. If he wasn't famous he'd be in jail for a long time because of all the factors it would make it a felony.