If the authorities are after you, it's a perfectly reasonable reaction to open fire and flee.

GMs: Remember that when your players are playing police officer characters.

Transcript

Garindan: {the shady character who has been following Obi-Wan and Luke around Mos Eisley} —the kid.
Trooper 1: What do you want us to do, sir?
Garindan: Stop them!
Trooper 1: Excuse me, captain, sir! Might we have a word?
Han: Oh man, the fuzz. Here we go again, Chewie!
[SFX]: Pow! Pow!
Trooper 1: He's shooting! Return fire!
[SFX]: Pow!
{Han races on board}
Obi-Wan: You didn't need to shoot at them. I could have talked our way out.
Han: My way was faster. Strap yourselves in!
C-3PO: Next stop, Naboo. Don't look so worried, Luke, space travel is fun!
Luke: Yeah, if you can survive in a vacuum.
Han: Nah, we'll be fine. Now... where's the bridge?
Obi-Wan: I assume this trail of duct tape labelled "this way to the bridge" might assist your quest.
Luke: We're all going to die.