Got this back from Bellevue:
I have been asked to respond to your email to the City regarding Bellevue code section 3.43.320. The City is aware of the provisions of the RCW regarding regulation of firearms, and the City code section is not intended to prohibit the lawful possession of firearms in parks, nor will the City cite or expel people from parks for the lawful possession of firearms. Understanding that the Bellevue code provision is causing confusion about the intent and application of the prohibition, we have added Section 3.43.320 to our list of code sections that need amendment in our next code clean-up effort. In addition, the wording on signs posted in parks will be refined to clarify that the lawful possession of firearms is not prohibited when those signs are replaced as part of the City's routine maintenance. Thank you for contacting the City with this concern.
Kate Berens│Deputy City Attorney
City of Bellevue