This was my last Ammo Can from the garage. FTF just take any item without trading. To find the cache solve the following cryptogram:
XAX LWWFLO GZ MFVJWVX AX L QKWNW FLZGMK SFV XGMJZ MFVJWVX AXL QFAFW LZJWWEA DD AGFL OGZMFV JWVFA FW LQL ZJW WLZGMKS FV XANW ZMFVJWV LOWFLQXANW
For your own safety do not attempt this cache at night.