Where do you experience the falses? Country road or downtown in a city?
You can set the minimum speed for radar alerts at 20 or 30 mph. That means that radar alerts will be muted but still displayed.
You can also use the lockouts to lockout a known false. You can set 2,500 lockouts!
And of course you can set the city filter. I would not set it higher than 5 since you want to receive advanced notice if a cop is using K band.
Let me know how it goes