Question about RPH and LSPDFR functions

Heya, I've hot two questions:

1. For Police Menu I heavily rely on getting the Players keyboard presses. I do so by freezing the Game and using a GTA textbox to gather the string. However some plugins still register keypresses in the background and thus open certain menus when typing a text.

Is there a way to supress Game.IsKeyDown for a certain time?

2. When playing witvout disabled scripthooks in the .ini file, the player gets certain Popups near objects like beds, shower, seats etc (Press E to sit down for, example). Is there a way to disable those umder certain conditions, or atleast supress the help message? I trigger a helpmessage myself and the game is fighting on which messages takes priority, resulting in constant beeping