I answered the phone and they are a scam called "POLICE PROTECTIVE FUND". They want money to help families of fallen police. He got mad when I told him I don't donate over the phone. I footless it and sure enough...SCAMMERS!
Got a call this morning from these guys, trying to haggle me into "just $25 bucks", but I did enough quick internet searches to find this before hanging up:
Police Protective Fund - they're a scam "charity" and they call me All. The. Time. The number is usually unavailable, but this time it showed up as "wireless caller." Crafty little deviants, they are.