Things that could be used as a distraction for zombies:
-Firecrackers/Fireworks could be thrown and last for a small duration of time.
-Meat,could be used as bait.
-Car alarms,break the window of a car and trigger the alarm.
-Makeshift distraction devices made from house hold items(speakers,bells,toys)
-Other zombies,encourages the player to engage in stealth,for example if you are getting spotted by a zombie,he could draw the attention of others to the player location by screaming or alerting them in another way.
We’ve never seen the turned whatsoever, unless those horde mode enemies that look identical to the player are turned. From an in-universe or from a gameplay perspective it would make sense that they would scavenge meat if it’s readily available but wouldn’t constantly be sprinting around chasing squirrels.