Trivia: The last conversation between Tom Arnold and that big guy is an obvious tribute to the conversation between the same two actors at the end of Exit Wounds. They even mention the latter in the former.
Trivia: Among some of the cage fighters are Randy Couture and Chuck Liddel, two real life cage fighters in UFC.
Answer: The whole scene shows them driving on the bridge obviously shot from a helicopter. The whole sky is blue, so unless they had a very large blue screen, then I would say NO. Besides that scene is supposed to represent night-time. Therefore it's supposed to be the glow of the moon.
XIII