Answer: Team 1 should ignore team 2 and report to their coach, ref, or another person who could possibly help team 1 to stop the bad behavior.
Yelling isn't going to do any good. It's just going to cause more issues and possibly cause disqualification and its going to result in embarassment. Stay calm and ignore them. Team 2 are doing those rude things to purposely make Team 1 angry and affect their playing.
Hope this helps!
Answer: you always want your wheels to be facing the curb, so if your brakes go out or something, your car will roll into the curb.